Question

12 2/21 + 2 1/3 - 3/7​

Answer 1

Ответ:

Пошаговое объяснение:

12 2/21+2 1/3=12 2/21+2 7/21=14 9/21=14 3/7

14 3/7-3/7=14

Answer 2

12 + 2/21 + 2 + 1/3 - 3/7

First, we need to add the whole numbers together: 12 + 2 = 14

Next, we add the fractions together: 2/21 + 1/3 - 3/7

To add the fractions, we need to find a common denominator. In this case, the common denominator is 21*3*7 = 441.

Now we can rewrite the fractions with the common denominator: 2/21 = 42/441 1/3 = 147/441 3/7 = 189/441

Now we can add the fractions together: 42/441 + 147/441 - 189/441 = 0

So the final answer is: 14 + 0 = 14