Question

((1,2,1)-4,3):8,7 отыныш тез ​

Answer 1

$\displaystyle ((1\frac{1}{2})^2-\frac{3}{4}):\frac{7}{8}=((\frac{3}{2})^2-\frac{3}{4})*\frac{8}{7}=(\frac{9}{4}-\frac{3}{4})*\frac{8}{7}=\frac{3}{2}*\frac{8}{7}=3*\frac{4}{7}=\frac{12}{7}=1\frac{5}{7}$