Question

1) 4 целых 7/8 + 3 целых 1/3=?2) (1/4+2/5):10=?

Answer 1

1)4 целых 7\8 +3 целых 1\3 = 39\8+10\3=39*3+10*8\24=117+80\24=197\24=8 целых 5\24
2)(1\4+2\5)\10=(1*5+2*4\20)\10=(5+8\20)\10=(13\20)\10=13\200=0,065
или(1\4+2\5)\10=(0,25+0,4)\10=0,65\10=0,065

Answer 2

1) To add 4 whole numbers and 7/8 to 3 whole numbers and 1/3, we can first convert the fractions to a common denominator. The common denominator for 8 and 3 is 24.

For the first number, 7/8, we multiply the numerator and denominator by 3 to get 21/24. For the second number, 1/3, we multiply the numerator and denominator by 8 to get 8/24.

Now we can add the whole numbers and fractions separately:

4 + 3 = 7 (whole numbers) 21/24 + 8/24 = 29/24 (fractions)

To simplify the fraction, we can divide the numerator and denominator by their greatest common divisor, which in this case is 1:

29/24 ÷ 1/1 = 29/24

So, the sum of 4 whole numbers and 7/8 plus 3 whole numbers and 1/3 is 7 and 29/24.

2) To divide the sum of 1/4 and 2/5 by 10, we can first find the sum of the fractions:

1/4 + 2/5

To find a common denominator, we multiply the denominators together:

4 * 5 = 20

Now we can convert the fractions to have a common denominator of 20:

1/4 = 5/20 2/5 = 8/20

The sum of the fractions is:

5/20 + 8/20 = 13/20

To divide this sum by 10, we can simply divide the numerator by 10:

13/20 ÷ 10 = 13/200

So, the division of the sum of 1/4 and 2/5 by 10 is 13/200.