Steps
What is the 1st step when solving addition and subtraction problems with unlike denominators?
Find a common denominator.
1/4 + 2/6
7/12
3/5 - 1/5 =
2/5
1/2 X 3/4
3/8
What is the 2nd step when adding/subtracting fractions with unlike denominators?
Find equivalent fractions using the new denominator.
5/6 - 1/4 =
7/12
2/4 + 3/4=
5/4
2/5 X 7/9
14/45
What is the 3rd step when adding and subtracting fractions with unlike denominators?
Add or subtract the numerators.
2/5 - 1/6 =
7/30
5/10 - 1/10 =
4/10
5/7 X 2/3
10/21
What is the 4th step when adding and subtracting fractions with unlike denominators?
Change improper fractions to mixed numbers.
4/8- 3/8 =
1/8
4/6 X 2/8
8/48
Simplify 5/10
1/2
20/60 + 30/60 =
50/60
12/7 X 5/12
60/84