Question

номер 451 пример 2 please

Answer 1

$1frac{31}{35}:left(2-frac89:1frac{19}{45}right)\1);frac89:1frac{19}{45}=frac89:frac{64}{45}=frac89cdotfrac{45}{64}=frac58\2);2-frac58=1frac38=frac{11}8\3);1frac{31}{35}:frac{11}8=frac{66}{35}cdotfrac8{11}=frac{48}{35}=1frac{13}{35}$