Show:
Adding & Subtracting Fractions with Like Denominators
Adding & Subtracting Fractions with Unlike Denominators
Adding Mixed Numbers with Unlike Denominators
Subtracting Mixed Numbers with Unlike Denominators
Tips for Working with Fractions
100
1/6 + 4/6
5/6
100
1/4 + 5/8
7/8
100
4 1/6 + 9 2/3
13 5/6
100
7 3/4 - 1 1/12
6 2/3
100
Answers must be ___________.
Simplified
200
3/4 - 1/4
1/2
200
2/5 + 1/2
9/10
200
8 1/4 + 8 1/2
16 3/4
200
11 1/2- 7 3/8
4 1/8
200
12/7 is an example of an _______________. This is not in the simplest form!
improper fraction
300
9/10 - 7/10
1/5
300
7/12 - 1/2
1/12
300
8 1/6 + 4 1/2
12 2/3
300
17 8/9 - 8 2/3
9 2/9
300
Fractions must have the same _________ before adding or subtracting.
denominator
400
2/12 + 4/12
1/2
400
5/6 - 2/12
3/4
400
8 1/12 + 2 2/3
10 3/4
400
7 4/5 - 2 9/10
4 9/10
400
Use __________ fractions or LCM to find the same denominator before adding or subtracting.
equivalent
500
2/15 + 1/15
1/5
500
3/12 - 1/8
1/8
500
10 5/6 + 8 2/12
19
500
9 1/2 - 5 8/12
3 5/6
500
To do math correctly, Ms. Lowe must have this much coffee.
At least 3/4 of the cup