Question

1. 6 3/13*8 11/19+6 3/13*4 8/19
2. 3 3/7*9 5/12-3 3/7*2 11/18

Answer 1

Ответ:

Пошаговое объяснение:

1. 6 3/13*8 11/19+6 3/13*4 8/19 =6 3/13*(8 11/19+4 8/19)=81/13*13=81

2. 3 3/7*9 5/12-3 3/7*2 11/18=3 3/7*(9 5/12-2 11/18)=3 3/7*(9 15/36-2 22/36)=

3 3/7*6 29/36=24/7*245/36=70/3=23 1/3