Question

17_6/7-13_1/21 срочно!!!

Answer 1

17_6/7-13_1/21= 17 18/21-13 1/21= 4 17/21

Answer 2

Calculation of 17 6/7 - 13 1/21

To solve the expression 17 6/7 - 13 1/21, we can first convert the mixed numbers to improper fractions and then perform the subtraction.

Conversion to Improper Fractions

- 17 6/7 as an improper fraction is (7*17 + 6)/7 = 119/7 - 13 1/21 as an improper fraction is (21*13 + 1)/21 = 274/21

Subtraction

Now, we can subtract the two improper fractions: 119/7 - 274/21

To subtract these fractions, we need to find a common denominator. In this case, the least common multiple of 7 and 21 is 21.

Subtraction Calculation

119/7 * 3/3 = 357/21 274/21

Now we can subtract: 357/21 - 274/21 = 83/21

The result of the expression 17 6/7 - 13 1/21 is 83/21.