Question

Find the value of '*' in the following fractions. 5/7=∗/21

a) 16
b) 15
c) 18

Answer 1

Answer:

3

Step-by-step explanation:

5/7×3/3=15/21

Answer 2

Given:

$\frac{5}{7} = \frac{*}{21}$

To find:

The value of *.

Step-by-step explanation:

• Here we need to find the value of *.
• We can do this by cross-multiplying the fractions.

Solution:

$\frac{5}{7} =\frac{*}{21}\\\\5*21 = * *7\\\\105 = 7*\\\\\frac{105}{7} = *\\\\*= 15$

The value of * is 15.