Question

Помогите решить (4-2/5)÷(2ц3/4-1/6)×(1ц3/5+2ц1/4+3ц1/2)=

Answer 1

1) $frac{5}{5} - frac{2}{5} = frac{3}{5}$

2) $frac{11}{4} - frac{1}{6} = frac{33-3}{12} = frac{30}{12} = frac{5}{2}$

3) $frac{3}{5} : frac{5}{2} = frac{3}{5} * frac{2}{5} = frac{6}{25}$

4) $frac{8}{5} + frac{9}{4} + frac{7}{2} = frac{24+45+70}{20} = frac{139}{20}$

5) $frac{6}{25} * frac{139}{20} = frac{139*3}{25*10} = frac{417}{250} =1 frac{167}{250}$