Question

7/8+8/7= ? 7/8:8/7=? 7/8*8/7​

Answer 1

Ответ:

$\frac{7}{8} +\frac{8}{7} = \frac{56+56}{56} = 2\\\\\frac{7}{8} : \frac{8}{7} = \frac{7}{8} *\frac{7}{8} = \frac{49}{64} \\\\\frac{7}{8} *\frac{8}{7} = \frac{56}{56} = 1$