Question

(4/7-8/49)•1/20 срочноооооооооо​

Answer 1

Ответ:

0,0204081632653

Пошаговое объяснение:

Answer 2

Ответ:

4 8 1 20 * 1 1

( — - — ) * — = ———— = —

7 49 20 49 * 20 49

Answer 3

Let's simplify the expression (4/7 - 8/49) * (1/20):

First, find a common denominator for 7 and 49, which is 49.

$\frac{4 \cdot 7}{7 \cdot 7} - \frac{8}{49} \cdot \frac{1}{20}$

$\frac{28}{49} - \frac{8}{980}$

Now, find a common denominator for 49 and 980, which is 980.

$\frac{28 \cdot 20}{49 \cdot 20} - \frac{8}{980}$

$\frac{560}{980} - \frac{8}{980}$

Combine the fractions:

$\frac{560 - 8}{980}$

$\frac{552}{980}$

Now, simplify the fraction by dividing both the numerator and denominator by their greatest common factor, which is 4.

$\frac{552 ÷ 4}{980 ÷ 4}$

$\frac{138}{245}$

So, $(4/7 - 8/49) \cdot (1/20)$ simplifies to $\frac{138}{245}$.