Question

Решить 8 5/7-(3.15-1 2/7)+4.25

Answer 1

1) 3.15-1 2/7=1 121/140
2) 8 5/7-1 121/140=6 17/20
3) 6 17/20+4 25/100= 11 1/10

Answer 2

I can help you with math problems. Here is the solution to your problem:

$$8+\frac{5}{7}-(3.15-1+\frac{2}{7})+4.25$$ $$=8+\frac{5}{7}-\left(\frac{3.15\times 7-7+2}{7}\right)+4.25$$ $$=8+\frac{5}{7}-\frac{22.05-5}{7}+4.25$$ $$=8+\frac{5}{7}-\frac{17.05}{7}+4.25$$ $$=8-\frac{12.05}{7}+4.25$$ $$=\frac{8\times 7-12.05+4.25\times 7}{7}$$ $$=\frac{56-12.05+29.75}{7}$$ $$=\frac{73.7}{7}$$ $$=10.53$$

The final answer is 10.53.Ответь+подробно.+Решить+8+5/7-(3.15-1+2/7)+4.25