Question

(46-42 7/12):1 1/4+36*5/12=

Answer 1

Ответ:

19.

(решение на фото)

@milkyway147

Answer 2

Let's break down the expression step by step:

1. First, perform the subtraction inside the parentheses: 46 - 42 7/12 = 3 5/12.

2. Now, you have the expression as follows: (3 5/12):1 1/4 + 36 * 5/12.

3. Next, divide 3 5/12 by 1 1/4. To do this, convert both fractions to a common denominator, which is 12.

   3 5/12 ÷ 1 1/4 = (47/12) ÷ (5/4).

4. To divide fractions, multiply by the reciprocal of the divisor:

   (47/12) ÷ (5/4) = (47/12) * (4/5).

5. Now, multiply the fractions:

   (47/12) * (4/5) = (47 * 4) / (12 * 5) = 188/60.

6. Reduce the fraction to its simplest form by dividing both the numerator and the denominator by their greatest common divisor, which is 4:

   (188/4) / (60/4) = 47/15.

7. So, (3 5/12):1 1/4 = 47/15.

8. Finally, add 36 * 5/12 to the result:

   47/15 + 36 * 5/12.

9. To add these fractions, first, find a common denominator, which is 60:

   (47/15) + (36 * 5/12) = (47/15) + (180/60).

10. Now that they have the same denominator, you can add the fractions:

(47/15) + (180/60) = (188/60) + (180/60) = (188 + 180)/60 = 368/60.

11. Reduce the fraction to its simplest form by dividing both the numerator and the denominator by their greatest common divisor, which is 4:

(368/4) / (60/4) = 92/15.

So, the final result is 92/15.