Question

Найдите значения выражений: а)3 1/3 * (2 3/4 : 5 1/2) б)2 2/5 : (3 2/5 - 1 11/15)

Answer 1

a)
$1)2 frac{3}{4} :5 frac{1}{2} = frac{11}{4} * frac{2}{11} = frac{1}{2}$
$2)3 frac{1}{3} * frac{1}{2} = frac{10}{3} * frac{1}{2} = frac{5}{3} =1 frac{2}{3}$
б)
$1)3 frac{2}{5} -1 frac{11}{15} =3 frac{6}{15} -1 frac{11}{15} =2 frac{21}{15} -1 frac{11}{15} =1 frac{2}{3}$
$2)2 frac{2}{5} :1 frac{2}{3} = frac{12}{5} : frac{5}{3} = frac{12}{5} * frac{3}{5} = frac{36}{25} =1 frac{11}{25}$