Вычислите:4) 9 2/7 * 1 2/5 / 13+ 6 3/7

Question

Вычислите:
4) 9 2/7 * 1 2/5 / 13+ 6 3/7

Answer 1

 9 2/7 * 1 2/5 / 13+ 6 3/7= 65/7 * 7/5*1/13+ 6 3/7=65/1 * 1/5*1/13+ 6 3/7=
=5/1 * 1/5*1/1+ 6 3/7=1/1 * 1/1*1/1+ 6 3/7=1+6 3/7=7 3/7