Срочно!!!
[tex](9 \frac{1}{4} + 8 \frac{2}{3} ) \times 1 \frac{5}{7} + (4 \frac{2}{9} - 2 \frac{5}{6} ) \div 1 \frac{1}{9} [/tex]
[tex](9 \frac{1}{4} + 8 \frac{2}{3} ) \times 1 \frac{5}{7} + (4 \frac{2}{9} - 2 \frac{5}{6} ) \div 1 \frac{1}{9} [/tex]
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Ответ:
31целая 27/28
Пошаговое объяснение:
9 1/4+8 2/3=9 3/12+8 8/12=17 11/12
17 11/12*1 5/7=215/12*12/7=215/7=30 5/7
4 2/9-2 5/6=3 22/18-2 15/18=1 7/18
1 7/18:1 1/9=25/18*9/10=5/4=1 1/4
30 5/7+1 1/4=30 20/28+1 7/28=31 27/28