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

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