Question

Сравните дроби их к общему знаменателю 12/48 и 4/32 18/42 и 15/21 8/36 и 18/37

Answer 1

$1) \: \frac{12}{48} \: u \: \frac{4}{32} \\ 48 = 16 \times 3 \\ 32 = 16 \times 2 \\ \frac{28}{96} \: \: \frac{12}{96} \\ \frac{12}{48} \: \: \frac{4}{32}$

$2) \: \frac{18}{42} \: u \: \frac{15}{21} \\ 42 = 21 \times 2\\ 21 = 21 \times 1 \\ \frac{18}{42} \: < \: \frac{30}{42} \\ \frac{18}{42} \: < \: \frac{15}{21}$

$3) \: \frac{8}{36} \: u \: \frac{18}{37} \\ \frac{296}{1332} \: < \: \frac{648}{1332} \\ \frac{8}{36} \: < \: \frac{18}{37}$