Question

(5 6/7+3 5/21)•2 /10=

Answer 1

Ответ:

29/15

Пошаговое объяснение:

=(8/1+5/3)*1/5=(24+5/3)*1/5=29/3*1/5=29/15=1 14/15

Answer 2

Ответ:

Пошаговое объяснение:

(5 6/7+3 5/21)•2 /10= 1 86/105

1) 5 6/7+3 5/21 = 41/7+68/21= 123/21+68/21=191/21=9 2/21

2) 9 2/21* 2/10= 191/21*2/10=382/210= 1 172/210 = 1   86/105  

Answer 3

To solve this expression, follow these steps:

Step 1: Add the mixed numbers in the parentheses: 5 6/7 + 3 5/21

First, convert both mixed numbers to improper fractions: 5 6/7 = (75 + 6)/7 = (35 + 6)/7 = 41/7 3 5/21 = (213 + 5)/21 = (63 + 5)/21 = 68/21

Now, add the fractions: 41/7 + 68/21

To add fractions, find a common denominator, which in this case is 21: (41/7) * (3/3) = 123/21 68/21

Now, add the fractions: 123/21 + 68/21 = 191/21

Step 2: Continue with the expression: (191/21) * 2 / 10

Now, multiply the fraction by 2: (191/21) * 2 = (191 * 2)/21 = 382/21

Finally, divide by 10: (382/21) / 10

To divide by 10, you can simply divide the numerator (382) by 10: 382 / 10 = 38.2

So, the result is 38.2.