Question

(3/7+1/3)*3/4
Решите пажалуйста.

Answer 1

$(\frac{3}{7} +\frac{1}{3} )*\frac{3}{4} =(\frac{9}{21}+\frac{7}{21} )*\frac{3}{4} =\frac{16}{21} *\frac{3}{4} =\frac{4}{7}$