Question

Вычислите подробно расписывая :

1) 9 24/27+12 13/27
2) 1-12/19
3) 8- 3 6/15
4) 12- 11 6/11
Это дроби ​

Answer 1

$1)9 \frac{24}{27} + 12 \frac{13}{27} = \frac{267}{27} + \frac{337}{27} = \frac{604}{27} = 22 \frac{10}{27} \\ \\ 2)1 - \frac{12}{19} = \frac{19}{19} - \frac{12}{19} = \frac{7}{19} \\ \\ 3)8 - 3 \frac{6}{15} = 7 \frac{15}{15} - 3 \frac{6}{15 } = \frac{120}{15} - \frac{51}{15} = \frac{69}{15} = 4 \frac{9}{15}^{(3} =4\frac{9\div3}{15\div3}= 4 \frac{3}{5} \\ \\ 4)12 - 11 \frac{6}{11} = 11 \frac{11}{11} - 11 \frac{6}{11} = \frac{132}{11} - \frac{127}{11} = \frac{5}{11}$