Question

A jar contains 75 marbles. 2/5 of the marbles are black. What fraction of the marbles are black, using 75 as the denominator

Answer 1

`(30)/(75)`

Explanation:

Given : A jar contains 75 marbles.

2/5 of the marbles are black.

To Find : What fraction of the marbles are black, using 75 as the denominator

Solution:

Total marbles = 75

2/5 of the marbles are black.

No. of black marbles =
`(2)/(5) * 75`

=
`30`

So, fraction of the marbles are black, using 75 as the denominator =
`(30)/(75)`

Answer 2

75 x 2/5 = 150/5 = 30

30/75 are black