Question

-10целых 2/7:1целая13/35+3целых9/11:1целую1/55

Answer 1

$(-10 frac{2}{7}): 1 frac{13}{35} + 3 frac{9}{11} : 1 frac{1}{55}=(- frac{72}{7}): frac{48}{35} + frac{42}{11} : frac{56}{55}=(- frac{72}{7}) cdot frac{35}{48} + frac{42}{11} cdot frac{55}{56}= \ \ = (- frac{72 cdot 35}{7 cdot 48}) + frac{42 cdot 55}{11 cdot 56}= (- frac{3 cdot 5}{ 2}) + frac{3 cdot 5}{ 4} = frac{-15}{2}+ frac{15}{4}=frac{-30+15}{4}=frac{-15}{4}$

Answer 2

1)-10 2/7:1 13/35=-72/7*35/48==-15/2=-7 1/2
2)3 9/11:1 1/55=42/11*55/56=15/4=3 3/4
3)-7 1/2+3 3/4=-7 2/4+3 3/4=-6 6/4+3 3/4=-3 3/4