Question

Which pair of fractions and mixed numbers have a common denominator of 20?

A) 2 3/8 and 3/4
B) 1 5/6 and 2/5
C) 4 1/3 and 1/4
D) 3 3/4 and 7/10

Answer 1

D 3 3/4 and 7/10

Explanation:

A) 2 3/8 and 3/4

4 goes into 20 evenly but 8 does not

NO

B) 1 5/6 and 2/5

5 goes into 20 evenly but 6 does not

NO

C) 4 1/3 and 1/4

4 goes into 20 evenly but 3 does not

NO

D) 3 3/4 and 7/10

4 goes into 20 evenly and 10 goes into 20 evenly

YES 3 3/4 = 3 15/20 and 7/10 = 14/20