This document provides steps for adding fractions with unlike denominators:
1. Find the least common denominator (LCD) or least common multiple (LCM) of the denominators.
2. Rewrite the fractions with the LCD as the new denominator.
3. Add the numerators and place the sum over the common denominator.
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Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
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http://sandymillin.wordpress.com/iateflwebinar2024
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Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
2. Common Multiple
A number that is a multiple
of two or more numbers.
Some multiples of 3 & 6
6, 12, 18, 24, 30, 36, 42
3. Least Common Multiple
The smallest common multiple
of a set of two or more
numbers.
6 = 6, 12, 18, 24, 30, 36
5 = 5, 10, 15, 20, 25, 30
4. Shortcut for Finding the Least
Common Denominator or Least
Common Multiple
1
3
1
9
+
Check to see if the smaller denominator
divides evenly into the larger denominator.
If it does, use the larger denominator for
your LCD or LCM.
3 will divide evenly into 9,
so 9 is your LCD or LCM.
5. To Add or Subtract Fractions
With Unlike Denominators
Find the multiples of each
denominator.
1
= 5, 10, 15, 20, 25, 30
1
= 10, 20, 30, 40, 50
+
5
10
6. To Add or Subtract Fractions
With Unlike Denominators
Compare the lists of multiples.
Circle the common multiples
between the two lists.
1
5 = 5, 10, 15, 20, 25, 30
1
10 = 10, 20, 30, 40, 50
+
7. To Add or Subtract Fractions
With Unlike Denominators
Use the lowest common
multiple as the denominator.
1
5 = 5, 10, 15 ,20 ,25 ,30
1
10 = 10, 20, 30, 40, 50
+
8. To Add or Subtract Fractions
With Unlike Denominators
This number is also called the
least common denominator.
1
5 = 5, 10, 15 ,20 ,25 ,30
1
10 = 10, 20, 30, 40, 50
+
9. To Add or Subtract Fractions
With Unlike Denominators
Rewrite the fractions using the
least common denominator or
least common multiple.
1
5
1
10
+
10
10
10. To Add or Subtract Fractions
With Unlike Denominators
Find the equivalent fractions for
1/5 & 1/10 with 10 as the
denominator.
1
5
1
10
+
10
10
You know that 1/10
is equal to 1/10 so
Put a 1 over the
Bottom 10.
1
11. To Add or Subtract Fractions
With Unlike Denominators
Find the equivalent fractions for
1/5 & 1/10 with 10 as the
denominator.
1
5
1
10
+
10
10
To find the top
number, ask yourself
what do you multiply
the 5 by to get 10.
1
12. To Add or Subtract Fractions
With Unlike Denominators
Find the equivalent fractions for
1/5 & 1/10 with 10 as the
denominator.
1
5
1
10
+
10
10
That’s right 2. Since
you are looking for
the equivalent fraction
you know the top
number must also be
multiplied by 2.
1
x 2 =
x 2 =
13. To Add or Subtract Fractions
With Unlike Denominators
Find the equivalent fractions for
1/5 & 1/10 with 10 as the
denominator.
1
5
1
10
+
10
10
To find the top number
just multiply 2 x 1 to
get your equivalent
fraction.
1
x 2 =
x 2 = 2
14. To Add or Subtract Fractions
With Unlike Denominators
Now just add the numerators.
1
5
1
10
+
10
10
Remember when
adding fractions
you never add the
denominators.
1
x 2 =
x 2 = 2
10
3
16. Add these Fractions
1
2
1
8
+
Now find the
equivalent
fractions for
1/2 & 1/8.
8
8
x 1 =
x 4 =
Ask what do you multiply 2 by to get 8
and what do you multiply 8 by to get 8.
17. Add these Fractions
1
2
1
8
+
Since you are
writing equivalent
fractions, now
multiply the top
numbers by the
same number you
did in the
bottom.
8
8
x 1 =
x 4 =
x 1 =
x 4 =