Question

Вычеслите : 9- ( 1 целая 5/8 + 3/20)

Answer 1

9-(1 целая 25/40+6/40)=9- 1 целая 31/40 =8 целых 40/40- 1 целая 31/40=7 целых 9/40=7,225

Answer 2

To solve the expression 9 - (1 whole 5/8 + 3/20), we can start by converting the mixed number into an improper fraction.

First, convert 1 whole 5/8 into an improper fraction: 1 whole 5/8 = (1 * 8 + 5)/8 = 13/8

Now, the expression becomes: 9 - (13/8 + 3/20)

To simplify this expression, we need to find a common denominator for 8 and 20, which is 40.

Now, rewrite the expression with the common denominator: 9 - (13/8 * 5/5 + 3/20 * 2/2) 9 - (65/40 + 6/40)

Combine the fractions inside the parentheses: 9 - (71/40)

To subtract the fraction from 9, we need to find a common denominator, which is 40: 9 = 360/40

Now we can subtract the fractions: 360/40 - 71/40 = 289/40

So, the answer is: 9 - (1 whole 5/8 + 3/20) = 289/40 or 7 9/40