Question

(12 целых 5/12 + 1 целых 2/3 - 3 целых 5/6 + 2 3/4):(2 целых 1/2 * 2/5 - 7/9)=?

Answer 1

$( frac{149}{12} + frac{5}{3} - frac{23}{6} + frac{11}{4} ) / ( frac{5}{2} * frac{2}{5} - frac{7}{9} )= \ =( frac{149+5*4-23*2+11*3}{12} )/ frac{2}{9} = \ frac{156}{12} * frac{9}{2} =58 frac{1}{2}$