Question

[need this done] (5/3) (2/3) (21)

A. 1/20
B. 20/3
C. 3/70
D. 70/3

Answer 1

D

Explanation:

Given

`(5)/(3)` ×
`(2)/(3)` ×
`(21)/(1)`

Multiply numerators/ denominators

=
`(5(2)(21))/(3(3)(1))`

=
`(210)/(9)`

Cancel the numerator/denominator by dividing both by 3

=
`(70)/(3)` → D

Answer 2

The answer is D.

If you multiply them all together the answer (without simplifying), it should equal 210/9, you then simplify the numerator and denominator by 3 and you get 70/3.