Question

помогите!!!!!!!!!!!!

Answer 1

$5 frac{6}{11} + frac{3}{11} = 5 frac{9}{11}$
$8 frac{3}{11} + 7 frac{5}{11} = 15 frac{8}{11}$
$7 frac{5}{6} + 5 frac{1}{6} = 12 frac{6}{6} = 13$
$5 frac{7}{12} - 2 frac{5}{12} = 3 frac{2}{12} = 3 frac{1}{6}$
$15 frac{2}{11} - 3 frac{9}{11} = 14 frac{12}{11} - 3 frac{9}{11} = 11 frac{3}{11}$
$7 - 3frac{4}{5} = 6 frac{5}{5} - 3 frac{4}{5} = 2 frac{1}{5}$

Answer 2

а) 5+6/11+3/11=5+9/11=5цел 9/11
б) 8+7+3/11+5/11=15+8/11=15цел 8/11
в) 7+5+5/6+1/6=12+6/6=12+1=13
г) 5-2+7/12-5/12=3+2/12=3+1/6=3цел 1/6
д) 15-3+2/11-9/11=12-7/11=11+11/11-7/11=11+4/11=11цел 4/11
е) 7-3 4/5=6 5/5-3 4/5=6-3+5/5-4/5=3+1/5=3цел 1/5
6 2/7-2 3/7=6-2+2/7-3/7=4-1/7=3 7/7-1/7=3цел6/7т - во 2 бензовозе
6 2/7+3 6/7=6+3+2/7+6/7=9+8/7=9+1+1/7=10цел1/7т - в 2-х бензовозах