Question

решите 1 1/3*(-3/4)-(-2 1/7)*1 2/5

Answer 1

$1)1 \frac{1}{3} *(- \frac{3}{4} )= \frac{4}{3} *(- \frac{3}{4} )=-1 \\ 2)-2 \frac{1}{7} *1 \frac{2}{5} =- \frac{15}{7} * \frac{7}{5} =-3 \\ 3)-1-(-3)=1+3=2$

Answer 2

1 1/3*(-3/4)-(-2 1/7)*1 2/5=4/3*(-3/4)-(-15/7)*7/5=-1-(-3)=-1+3=2