Question

- 4/15*45/84=?срочно пожалуйста a)1/21 b)-1/7 c)-1/4

Answer 1

Ответ:

b)-1/7

Пошаговое объяснение:

-4/15×45/84=-3/21=-1/7

Answer 2

To calculate the expression (4/15) * (45/84), you need to multiply the numerators and denominators:

(4/15) * (45/84) = (4 * 45) / (15 * 84) = 180 / 1260

Now, you can simplify the fraction by dividing both the numerator and denominator by their greatest common divisor, which is 180:

180 / 1260 = (180 ÷ 180) / (1260 ÷ 180) = 1 / 7

Therefore, the result is 1/7.

So, the correct option is:

a) 1/21