Adding and subtracting dissimilar fractions

1. ADDING AND SUBTRACTING
DISSIMILAR FRACTIONS

2. Rules in Adding and Subtracting
Dissimilar Fractions
 get the LCD or Least Common Denominator
 divide the LCD and the first denominator
and multiply the quotient to the numerator
and do the same to the second fraction
 add or subtract the numerator
 reduce the fraction to its lowest form if
possible

3. Examples:
1.)
1
3
+
1
2
=
2+3
6
=
5
6
2.)
3
4
−
2
3
=
9−8
12
=
1
12
3.)
6
8
−
2
4
=
6−4
8
=
2
8
or
1
4