Question

3/20*(17/12-1/2)+79/80_________________13/24:(7/12+1/2)-1/4

Answer 1

Оооо мы такое решали на каникулах это изи,сперва делаешь умножение за тем деление потом все слклываешь переходишь к знаменателю так же все делаешь затем числитель делишь на знаменатель

Answer 2

Фоточка тебе в помощь ;)

Answer 3

Let's break down the expression step by step:

3/20*(17/12-1/2)+79/80

First, we need to simplify the expression inside the parentheses:

17/12 - 1/2 = (17/12 * 2/2) - 1/2 = 34/24 - 12/24 = 22/24 = 11/12

Now we can substitute this value back into the original expression:

3/20*(11/12) + 79/80

Next, we need to multiply 3/20 by 11/12:

(3/20)(11/12) = (311)/(20*12) = 33/240 = 11/80

So our expression now becomes:

11/80 + 79/80

Now we can simply add the fractions:

11/80 + 79/80 = 90/80 = 9/8

So the first part of the expression simplifies to 9/8.

Now let's move on to the second part of the expression:

13/24:(7/12+1/2)-1/4

First, we need to simplify the expression inside the parentheses:

7/12 + 1/2 = 7/12 + 6/12 = 13/12

Now we can substitute this value back into the expression:

13/24:(13/12) - 1/4

Next, we need to subtract 1/4 from 13/12:

13/12 - 1/4 = (13/12 * 4/4) - 1/4 = 52/48 - 12/48 = 40/48 = 5/6

So our expression now becomes:

13/24:(5/6)

To divide by a fraction, we need to multiply by its reciprocal. So we can rewrite the expression as:

13/24 * (6/5) = 13/4 * (1/5) = 13/20

Therefore, the final value of the expression is:

9/8 + 13/20 = (45/40) + (26/40) = 71/40

So the answer is 71/40.