Vocabulary
What is the 1st step when solving addition and subtraction problems with unlike denominators?
Find common denominators.
3 2/7 + 2 1/4 =
5 15/28
2/8
1/4
What is the 2nd step when adding/subtracting fractions with unlike denominators?
Get equivalent fractions.
2 2/3 - 8/9 =
1 21/27 or 1 7/9
4/12
1/3
7/8 + 1/5 =
1 3/40
What is the 3rd step when adding and subtracting fractions with unlike denominators?
Add or subtract
2 3/4 - 1 5/6 =
22/24 OR 11/12
20/3
6 2/3
5/10 - 1/3 =
1/6
8/9 - 3/27 =
7/9
What is an improper fraction?
A fraction with a numerator that is greater than the denominator
2 1/8 + 2/5
2 21/40
51/6
8 1/2
What is a mixed number?
A whole number and a fraction
3 2/3 + 7/8 =
2 19/24
55/10
5 1/2
8/12 - 1/24 =
15/24
2/4 -3/6 =
0