Show:
Adding/Subtracting Fractions
Adding/Subtracting Mixed Numbers
Multiplying Fractions
Multiplying Mixed Numbers
Vocabulary
100
7/9 + 4/9
1 2/9
100
5 - 1 2/3
3 1/3
100
7/12 x 12/7
1
100
1 1/2 x 2
3
100
What two operations do we need common denominators?
addition and subtraction
200
5/11 - 8/11
-3/11
200
2 7/8 + 5 5/8
8 1/2
200
6/7 x 7/12
1/2
200
2 2/3 x 3/5
1 3/5
200
Common denominators are necessary when multiplying or dividing. True or False?
False
300
6/7 + 11/14
1 9/14
300
11 2/3 - 8 3/4
2 11/12
300
8/9 x 3/12
2/9
300
1 2/5 x 2 1/4
3 3/20
300
When we switch the numerator and denominator of a fraction it is called the ________ of a fraction
reciprocal
400
3/5 + 2/3
1 4/15
400
-4 1/7 - 3 1/3
- 7 10/21
400
8/9 x 5/6
20/27
400
1 2/9 x 2 2/3
3 7/27
400
What is the mixed number equivalent to 21/9?
2 1/3
500
4/6 - 5/8
1/24
500
8 3/8 - 11 7/12
-3 5/24
500
9/5 x 9/4
4 1/20
500
3 3/5 x 2 4/8
9
500
Similar to how we can multiply across when multiplying fractions, we can also divide across when dividing fractions. True or False
True