Subtract Fractions with Unlike Denominators
What is 5/6 − 3/8
a) 2/9
b) 5/24
c) 11/24
d) 7/18
c
What makes a fraction Improper?
When the numerator is larger than the denominator
Mark has 3/5 of a liter of paint and adds 1/6 of a liter more. How much paint does he have now?
a) 14/30
b)18/30
c)23/30
d) 29/30
c
2/5 X 3/4
6/20
2/3 divided by 1/4
2/3 x 4/1 = 8/3
Subtract 1 1/2 from 3 3/4
2 1/4
Convert 2 1/2 to an improper fraction
5/2
Emma has 4/7 of a yard of fabric and adds 2/3 of a yard more. How much fabric does she have now?
a) 24/21
b) 26/21
c) 20/21
d) 25/21
b
3/7 x 2/5
6/35
4/5 divided by 5
4/5 x 1/5 = 4/25
What is 4/5 - 2/9
a) 11/45
b) 26/45
c) 14/45
d) 2/5
b
Convert 13/4 to a mixed number
3 1/4
Ryan has 2/3of a pound of clay and adds 3/4 of a pound more. How much clay does he have now?
17/12
8/10 x 2/3
16/30 ------- 8/15
1/8 divided by 2/3
1/8 x 3/2 = 3/16
Subtract 2 2/3 from 5 1/4
2 7/12
What is 3 2/5 as an improper fraction?
17/5
Olivia has 5/9 of a cup of juice and adds 2/5 of a cup more. How much juice does she have now?
43/45
1 2/3 x 3/5
15/15 ----- 1
4/5 divided by 6/7
4/5 x 7/6 = 28/30-------14/15
True or False: You have to find a common denominator when adding, subtracting, multiplying, and dividing fractions
False: only when adding or subtracting
Convert 15/6 to a mixed number
2 3/6 ---- simplify to 2 1/2
Ethan has 7/8 of a gallon of water and adds 1/6 of a gallon more. How much water does he have now?
25/24
2 1/2 x 3 1/3
50/6 -----25/3 ------8 1/25
1 3/4 divided by 2/3
7/4 x 3/2 = 21/8-------- 2 5/8