Question

Пж приведите броби
215
415
13
К знаменателю 30

Answer 1

2/15 = 2/2 * 2/15 = 4/30,

4/15 = 2/2 * 4/15 = 8/30,

1/3 = 1/3 * 10/10 = 10/30

Answer 2

$frac{2}{15} = frac{2 times 2}{15 times 2} = frac{4}{30} \ \ frac{4}{15} = frac{4 times 2}{15 times 2} = frac{8}{30} \ \ frac{1}{3} = frac{1 times 10}{3 times 10} = frac{10}{30}$