Помогите пожалуйста -5 целых 7/9 + (- 3 целых 4/9) : - 5/8 + (-11/12): - 4 целых 5/14 + (- 7 целых 10/21): -7/12 + 9/10: 5 целых 2/9 + (_ 2 целых 3/4): -5 целых 3/8 + 4 целых 9/10: 3 целых 1/4 + (- 3 целых 2/3) + (- 4 целых 1/...

[latex]-5 \frac{7}{9} +(-3 \frac{4}{9})= -5 \frac{7}{9} -3 \frac{4}{9}=-9 \frac{2}{9} [/latex] [latex] -\frac{5}{8} +(- \frac{11}{12})=  -\frac{15}{24} - \frac{22}{24}=-1 \frac{13}{24} [/latex] [latex]-4 \frac{5}{14} +(-7 \frac{10}{21})= - \frac{61}{14} - \frac{157}{21}=\frac{-183-314}{42}=-11 \frac{35}{42} [/latex] [latex] -\frac{7}{12} + \frac{9}{10})=  -\frac{35}{60} + \frac{54}{60}= \frac{19}{60} [/latex] [latex]5 \frac{2}{9} +(-2 \frac{3}{4})=  \frac{47}{9} - \frac{11}{4}=\frac{188}{36} - \frac{99}{36}=2 \frac{17}{36} [/latex] [latex]-5 \frac{3}{8} +4 \frac{9}{10})=  -\frac{43}{8} + \frac{49}{10}=-\frac{215}{40} + \frac{196}{40}=- \frac{19}{40} [/latex] [latex]3 \frac{1}{4}+(-3 \frac{2}{3} )+(-4 \frac{1}{5})= \frac{13}{4}- \frac{11}{3}- \frac{21}{5} = \frac{195-220-252}{60}=- \frac{277}{60}=-4 \frac{37}{60} [/latex]