А)1 целая 11/14 ___________ 5/7 б)3,2 * 0,81 __________ 0,9 * 1,6в)(3,2 + 5,2) *...

1. $1\frac{11}{14} = \frac{11}{14} = 1.78$
2. $\frac{5}{7}= 0.7$
3. (3,2 + 5,2) * 7,5 = 8,4*7,5=63
0,9 * 1,6=1,44
4. $3\frac{5}{6} - 1\frac{1}{3} = \frac{26}{6} - \frac{4}{3} = \frac{26}{6} - \frac{8}{6} = \frac{15}{6} = \frac{5}{2} = 2\frac{1}{2} = 2,5$
$2,5 : \frac{5}{6} = \frac{2}{5} : \frac{5}{6} = \frac{5}{2} * \frac{6}{5} = \frac{1}{2} *6 = 3$