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

Answer:

$\frac{30}{75}$

Step-by-step 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 = $\frac{2}{5} \times 75$

                                  = $30$

So,  fraction of the marbles are black, using 75 as the denominator = $\frac{30}{75}$

Answer 2

75 x 2/5 = 150/5 = 30

30/75 are black