0
Upcoming SlideShare
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Standard text messaging rates apply

# Fractions - Add, Subtract, Multiply and Divide

100,669

Published on

Adding, subtracting, multiplying and dividing fractions step by step.

Adding, subtracting, multiplying and dividing fractions step by step.

Published in: Education, Technology
20 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• @guestf46969 Larry Dabria for 6/5 and 1 you turn 1 into a fraction that represents 1 whole so it would be 1/1 and for 6/5 - 1/1 you need to make the denominators the same so it would be 6/6 now do the equation 6/5 - 6/6 = 0.2 in decimal version or in fraction version its 2/10.

Are you sure you want to  Yes  No
• Larry Dabria for 6/5 and 1 you turn 1 into a fraction that represents 1 whole so it would be 1/1 and for 6/5 - 1/1 you need to make the denominators the same so it would be 6/6 now do the equation 6/5 - 6/6 = 0.2 in decimal version or in fraction version its 2/10.

Are you sure you want to  Yes  No
• What about if the denominators weren't even to each other?

Are you sure you want to  Yes  No
• relly good

Are you sure you want to  Yes  No
• This is great

Are you sure you want to  Yes  No
Views
Total Views
100,669
On Slideshare
0
From Embeds
0
Number of Embeds
21
Actions
Shares
0
0
6
Likes
20
Embeds 0
No embeds

No notes for slide

### Transcript

• 1. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 and 1 4 2 Let’s take two fractions...
• 2. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 + 1 4 2 ...and add them first Fractions must have like denominators to add them
• 3. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 + 1 4 2 The denominators must &quot;speak the same language&quot; in order to add them
• 4. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 + 1 ? 4 2 -> 4 Since 2 goes into 4, we need to change the denominator in 1/2 from 2 to 4 and then figure what the numerator would be
• 5. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 + 1 x2 2 4 2 x2 4 2 x 2 = 4, and we must do the same thing to the top number that we did to the bottom number, and that is to multiply it by 2, so 1/2 is the same as 2/4
• 6. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 + 2 = 5 4 4 4 Now that the fractions &quot;speak the same language,&quot; you can add them... 3 + 2 = 5
• 7. FRACTIONS Adding, Subtracting, Multiplying and Dividing 5 = 4 + 1 = 1 4 4 4 1 4 ...and then simplify 5/4 is the same as 4/4 + 1/4 4/4 is equal to 1 with 1/4 left over
• 8. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 and 1 4 2 Now let’s take these same fractions...
• 9. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 - 1 4 2 ...and subtract them now Fractions must have like denominators to subtract them
• 10. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 - 1 4 2 The denominators must &quot;speak the same language&quot; in order to subtract them
• 11. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 - 1 ? 4 2 -> 4 Since 2 goes into 4, all we need to do is to change the denominator in 1/2 from 2 to 4 and then figure out what the numerator would be
• 12. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 - 1 x2 2 4 2 x2 4 2 x 2 = 4, and we must do the same thing to the top number that we did to the bottom number, and that is to multiply it by 2, so 1/2 is the same as 2/4
• 13. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 - 2 = 1 4 4 4 Now that the fractions &quot;speak the same language,&quot; you can subtract them 3 - 2 = 1
• 14. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 - 2 = 1 4 4 4 1/4 cannot be simplified any further
• 15. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 and 1 4 2 Let’s take these same fractions...
• 16. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 x 1 4 2 ...and multiply them now Fractions do not need like denominators to multiply them
• 17. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 x 1 = 3 4 2 8 Simply multiply the numbers across the top and multiply across the bottom...
• 18. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 x 1 = 3 4 2 8 ...and simplify if needed Easy!
• 19. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 and 1 4 2 One more time! Take these same fractions...
• 20. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 ÷ 1 4 2 ...and let's divide them this time Fractions do not need like denominators to divide them, just like multiplication
• 21. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 ÷ 1 4 2 In fact, they are a multiplication problem “ in disguise”
• 22. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 ÷ 1 -> 2 4 2 -> 1 You simply “flip” the second fraction, otherwise known as its “reciprocal”...
• 23. FRACTIONS Adding, Subtracting, Multiplying and Dividing 3 x 2 = 6 4 1 4 ...and multiply the numbers across the top and across the bottom...
• 24. FRACTIONS Adding, Subtracting, Multiplying and Dividing 6 = 4 + 2 = 1 4 4 4 1 2 ...and then simplify 6/4 is the same as 4/4 + 2/4 4/4 is equal to 1 with 2/4, or 1/2, left over Division is easy, too!