Question

Сократите дроби 3*11/11*21, 15*3/12*25 зарание

Answer 1

3×11/11×21=1×1/1×7=1/7;15×3/12×25=3×1/4×5=3/20

Answer 2

$\frac{3*11}{11*21} = \frac{3}{3*7} = \frac{1}{7} ; \frac{15*3}{12*25} = \frac{3*5*3}{4*3*5*5} = \frac{3}{20}$