Question

20-23,1:(5 7/20-4 6/35)

Answer 1

Решение вот, все же просто.

Answer 2

To solve the given expression, let's break it down step by step:

Step 1: Convert the mixed numbers to improper fractions.

5 7/20 can be written as (5 * 20 + 7) / 20 = 107 / 20. 4 6/35 can be written as (4 * 35 + 6) / 35 = 146 / 35.

Step 2: Perform the subtraction.

(107 / 20) - (146 / 35)

Step 3: Find the common denominator for both fractions.

The least common multiple (LCM) of 20 and 35 is 140. So, we will rewrite both fractions with a denominator of 140.

(107 / 20) = (107 * 7) / (20 * 7) = 749 / 140 (146 / 35) = (146 * 4) / (35 * 4) = 584 / 140

Step 4: Subtract the fractions.

(749 / 140) - (584 / 140) = (749 - 584) / 140 = 165 / 140.

Step 5: Simplify the fraction.

The fraction 165/140 can be simplified by dividing both the numerator and denominator by their greatest common divisor (GCD), which is 5.

(165 / 5) / (140 / 5) = 33 / 28.

So, the result of the expression is 33/28.