Question

Сократите дробь 42\49 ; 30\75
Подробно.

Answer 1

$1) \frac{42}{49}= \frac{6*7}{7*7}= \frac67\\ 2) \frac{30}{75}= \frac{2*15}{5*15}= \frac25=0,4$

Answer 2

42    6*7     6
--- = ----- = ---
49    7*7     7


30    2*15      2
--- = ------- = ---
75    5*15      5