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 - 1/7 =
16/35
Simplify: 5 3/4
23/4
What is the 2nd step when adding/subtracting fractions with unlike denominators?
Find a common denominator
5/6 - 1/4 =
7/12
2/4 + 3/9 =
5/6
Add:
3 9/12 + 6 1/2
10 1/4
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 - 1/3 =
1/6
Reduce the fraction:
4/20
1/5
What is the 4th step when adding and subtracting fractions with unlike denominators?
Change improper fractions to mixed numbers.
4/5- 3/8 =
17/40
Write and equivalent fraction to:
8/16
1/2
What is the 4th step when adding and subtracting fractions with unlike denominators?
Simplify.
20/40 + 30/60 =
1
8/12 + 17/20 =
1 31/60