Вичислите: А)1цел2/3+3цел3/4 Б)4цел3/5-1цел4/5 В)10цел5/32*13цел7/5 Г)12цел3/8:10цел5/16

Решите задачу:

$1 \frac{2}{3}+3 \frac{3}{4}= \frac{5}{3}+ \frac{15}{4}= \frac{20+45}{12}= \frac{65}{12} =5 \frac{5}{12}$
$4 \frac{3}{5} -1 \frac{4}{5}= \frac{23}{5} - \frac{9}{5}= \frac{23-9}{5}= \frac{14}{5}= 2 \frac{8}{10}=2,8$
$10 \frac{5}{32}*13 \frac{7}{5}= \frac{325}{32} * \frac{72}{5}= \frac{65*36}{16}= \frac{2340}{16}= 146,25$