Question

пжжжжжжжжжжжжжжжж именно простым

Answer 1

(13 2/5+7 2/3)-(6 2/3-3/5)=13 2/5+7 2/3-6 2/3+3/5=15
1) 13 2/5+3/5=14
2) 7 2/3-6 2/3=1
3) 14+1=15

Answer 2

$(13\frac{2}{5} +7 \frac{2}{3} )-(6 \frac{2}{3} - \frac{3}{5} )= \\ \\ 13\frac{2}{5} +7 \frac{2}{3} -6 \frac{2}{3} + \frac{3}{5} = \\ \\ 14+1 =15$