Question

A) x - 8/15 = 4/5
b) 12/23 + x = 24/25
и объясните почему так.

Answer 1

Пошаговое объяснение:

х - 8/15 = 4/5

х = 4/5 + 8/15

х = 12/15 + 8/15

х = 20/15

х = 4/3

х = 1. 1/3

12/23 + х = 24/25

х = 24/25 - 12/23

х = 552/575 - 300/575

х = 252/575

Answer 2

$x - \frac{8}{15} = \frac{4}{5} \\ x = \frac{4}{5} + \frac{8}{15} \\ x = \frac{12 + 8}{15} \\ x = \frac{20}{15} \\ x = \frac{4}{3} \\ x = 1 \frac{1}{3}$

$\frac{12}{23} + x = \frac{24}{25} \\ x = \frac{24}{25} - \frac{12}{23} \\ x = \frac{552 - 300}{575} \\ x = \frac{252}{575}$