Question

4/5 * 5/6 *6/7 * 7/8​

Answer 1

$\frac{4}{5} *\frac{5}{6} *\frac{6}{7}*\frac{7}{8} =\frac{4*5*6*7}{5*6*7*8}$

Сокращаем 5 и 5, 6 и 6, 7 и 7, остается:

$\frac{4}{8} =\frac{1}{2}=0,5$