Question

Выражение (21 11/18-16 23/24)-(11 5/18-7 17/24) равно

Answer 1

$(21 \frac{11}{18}-16 \frac{23}{24} )-(11 \frac{5}{18}-7 \frac{17}{24} )= \\ = 21 \frac{11}{18}-16 \frac{23}{24}-11 \frac{5}{18}+7 \frac{17}{24} = \\ = 10 \frac{6}{18}-9 \frac{6}{24}=10 \frac{1}{3}-9 \frac{1}{4}= \\ = 10 \frac{4}{12}-9 \frac{3}{12}=1 \frac{1}{12}$