Question

3 3/8*7/9 и 1 2/13*1 5/8*1 1/7
пожалуйста с ришением

Answer 1

1) 27/8 * 7/9=(27 * 7)/(8 * 9)=3*7/8=21/8=2 5/8

2) 15/13 * 13/8 * 8/7=

   (15 * 13 * 8)/(13 * 8 * 7)=15/7=2 1/7.

Answer 2

Ответ: $3\frac{3}{8} *\frac{7}{9} =\frac{9*3}{8}*\frac{7}{9}=\frac{3}{8}*7=\frac{3*7}{8}=\frac{21}{8} =2\frac{5}{8} \\\\1\frac{2}{13} *1\frac{5}{8}*1\frac{1}{7}= \frac{15*13*8}{13*8*7}=\frac{15}{7}=2\frac{1}{7}$