Помогите! Даю 46 Баллов! Номер 540(4) пример!!!

5 \frac{481}{910}" alt="(9 \frac{3}{20} -1,24):2 \frac{1}{3} -( \frac{3}{4} +2 \frac{5}{8} ):(-0,625)=5 \frac{481}{910}" align="absmiddle" class="latex-formula">
1. $9 \frac{3}{20} -1,24=9,15-1,24=7,91$
2. $7,91:2 \frac{1}{3}= \frac{791}{91} : \frac{7}{3} = \frac{791*3}{91*7} = \frac{13*3}{91} = \frac{39}{91}$
3. $\frac{3}{4} +2 \frac{5}{8}= \frac{3}{4} + \frac{21}{8} = \frac{27}{8}$
4. $\frac{27}{8} :(-0,625) = 3,375:(-0,625)=-5,4$
5. $\frac{39}{91}-(-5,4)= \frac{39}{91} +5,4= \frac{39}{91} + \frac{54}{10} = \frac{390+4641}{910} = \frac{5031}{910} =5 \frac{481}{910}$