Question

2 5/8+2 7/8;10- 4 3/10;6 2/7- 3 6/7​

Answer 1

2 5/8 + 2 7/8 = 4 12/8 = 4 3/2 = 5 целых 1/2

10 - 4 3/10 = 9 10/10 - 4 3/10 = 5 целых 7/10

6 2/7 - 3 6/7 = 5 9/7 - 3 6/7 = 2 целых 3/7

Answer 2

To solve the given arithmetic expressions, let's break them down step by step:

1. Addition: 2 5/8 + 2 7/8

To add mixed numbers, we first add the whole numbers separately and then add the fractions separately.

Whole Numbers: 2 + 2 = 4

Fractions: 5/8 + 7/8 = (5 + 7)/8 = 12/8 = 1 4/8

Therefore, 2 5/8 + 2 7/8 = 4 1/2

2. Subtraction: 10 - 4 3/10

Again, let's subtract the whole numbers separately and then subtract the fractions separately.

Whole Numbers: 10 - 4 = 6

Fractions: 3/10 - 3/10 = 0/10 = 0

Therefore, 10 - 4 3/10 = 6

3. Subtraction: 6 2/7 - 3 6/7

Once again, we subtract the whole numbers separately and then subtract the fractions separately.

Whole Numbers: 6 - 3 = 3

Fractions: 2/7 - 6/7 = (2 - 6)/7 = -4/7

Therefore, 6 2/7 - 3 6/7 = 3 - 4/7 = 2 3/7

The solutions to the given expressions are:

1. 2 5/8 + 2 7/8 = 4 1/2
2. 10 - 4 3/10 = 6
3. 6 2/7 - 3 6/7 = 2 3/7