Steps
What is the first step when adding or subtracting fractions with unlike denominators?
2/3 + 1/4
8/12 + 3/12 = 11/12
1/3 - 1/4
4/12 - 3/12 = 1/12
2 3/4 + 2/3
2 9/12 + 8/12 = 41/12 = 2 17/12
Simplified: 3 5/12
What is a denominator?
The number on the bottom of the fraction or the number below the line in the fraction
What is the second step when adding or subtracting fractions with unlike denominators?
Make equivalent fractions
3/4 + 2/3
9/12 + 8/12 = 17/12
Simplified: 1 5/12
2/3 - 1/5
10/15 - 3/15 = 7/15
2 1/4 + 5/6
2 3/12 + 10/12 = 2 13/12
Simplified: 3 1/12
What is a numerator?
The number on the top of the fraction or the number above the line in a fraction
What is the third step when adding or subtracting fractions with unlike denominators?
Add fractions with like denominators (Solve)
4/5 + 3/4
16/20 + 15/20 = 31/20
Simplified: 1 11/20
1/2 - 1/5
5/10 - 2/10 = 3/10
3 1/4 + 4/5
3 5/20 + 16/20 = 3 21/20
Simplified: 4 1/20
What does equivalent mean?
Equal in value or the same in value
What is the fourth step when adding or subtracting fractions with unlike denominators?
Simplify if needed!
6/7 + 5/6
36/42 + 35/42 = 71/42
Simplified: 1 29/42
4/5 - 2/3
12/15 - 10/15 = 2/15
Simplified: 1/5
3 1/5 - 2/3
3 3/15 - 10/15 = 2 18/15 - 10/15 =
2 8/15
What does simplify mean?
To reduce the fraction to its simplest form or the smallest form of a fraction
What is 4/6 simplified?
2/3
5/7 + 7/8
40/56 + 49/56 = 89/56
Simplified: 1 33/56
5/7 - 1/3
15/21 - 7/21 = 8/21
4 2/6 - 3 2/3
1 2/6 - 2/3 = 1 2/6 - 4/6 = 8/6 - 4/6 = 4/6
Simplified: 2/3
What is a common denominator?
Shared number between both denominators