Question

a.-
$\frac{3}{10} = \frac{x}{70}$
b.-
$\frac{9}{12} = \frac{4}{x}$
c.-
$\frac{1}{5} = \frac{3}{x}$
d.-
$\frac{x}{24} = \frac{2}{4}$
​

Answer 1

$\frac{3}{10} = \frac{x}{70}$

3 × 70 / 10

= 210/10

= 21

$\frac{9}{12} = \frac{4}{x}$

12 × 4 / 9

= 48 / 9

= 5.3

$\frac{1}{5} = \frac{3}{x}$

5 × 3 / 1

= 15 / 1

= 15

$\frac{x}{24} = \frac{2}{4}$

24 × 2 / 4

= 48 / 4

= 12