Question

(13/21+3/14):10/27
и способ решения

Answer 1

$( frac{13}{21} + frac{3}{14} ): frac{10}{27} =2 frac{1}{4}=2,25$

1. $frac{13}{21} + frac{3}{14} = frac{2*13}{2*21} + frac{3*3}{3*14} = frac{26}{42} + frac{9}{42} = frac{35}{42} = frac{5}{6}$

2. $frac{5}{6} : frac{10}{27} = frac{5*27}{6*10} = frac{1*9}{2*2} = frac{9}{4} = 2frac{1}{4}$