Question

Решите уравнение ( тута дроби )
2/21 + z = 5/28
14/25 - t = 8/75
Заранее спасибо !

Answer 1

2/21 + z = 5/28
z = 5/28 - 2/21
z = (21*5)/588 - (28*2)/588
 z = 105/588 - 56/588
z = 49/588 = 7/84 = 1/12
z = 1/12
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14/25  - t = 8/75
t = 14/25 - 8/75
t = 42/75 - 8/75
t = 34/75