Question

(1 1/3-625 1/4):(15/17)^-1
2 вариант 1ое задание

Answer 1

$left(1frac13-625frac14right):left(frac{15}{17}right)^{-1}\1);1frac13-625frac14=frac43-frac{2501}4=frac{16-7503}{12}=-frac{7487}{12}\2);-frac{7487}{12}:left(frac{15}{17}right)^{-1}=-frac{7487}{12}cdotfrac{17}{15}=-frac{127279}{180}=-707frac{19}{180}$