Question

найдите значения выражения$5\frac{1}{7}(3 \frac{1}{2}-6 \frac{2}{9} )$

Answer 1

5*1/7(3*1/2 - 6*2/9)=5*1/7(3/2 -2*2/3)=5*1/7(3/2 - 4/3)= 5*1/7 * 1/6=5/42