Question

Выполните действия: (8 7/12—2 17/36)·2 7/10—4 1/3:13/20

Answer 1

$(8frac{21}{36} - 2 frac{17}{36}) times frac{27}{10} - frac{13}{3} times frac{20}{13} = \ = 6 frac{4}{36} times frac{27}{10} - frac{20}{3} = \ = 6 frac{1}{9} times frac{27}{10} - frac{20}{3} : = \ = frac{55}{9} times frac{27}{10} - frac{20}{3} = \ = frac{33}{2} - frac{20}{3} = \ = frac{99 - 40}{6} = frac{59}{6} = 9 frac{5}{6}$