Question

Решите:
5(целых)1/2+(-3)
2(целых)1/2+(-6)
-3/4-1/3
2/5-3/7
1/3-5/3
Заранее спасибо

Answer 1

$5\frac{1}{2}+(-3)=2\frac{1}{2}\\2\frac{1}{2}+(-6)=-3\frac{1}{2}\\-\frac{3}{4}-\frac{1}{3}=-\frac{9}{12}-\frac{4}{12}=-1\frac{1}{12}\\\frac{2}{5}-\frac{3}{7}=\frac{14}{35}-\frac{15}{35}=-\frac{1}{35}\\\frac{1}{3}-\frac{5}{3}=-1\frac{1}{3}$