Question

(2 1/4+3 2/3)/(8 1/2-1 2/5)*1,2

Answer 1

Ответ:

Пошаговое объяснение:

(2 1/4+3 2/3)/(8 1/2-1 2/5)*1,2 =

(2 $\frac{3}{12}$ + 3 $\frac{8}{12}$) / (8$\frac{5}{10}$ - 1 $\frac{4}{10}$ ) * 1,2 =

5$\frac{11}{12}$ / 7$\frac{1}{10}$ * 1,2=$\frac{71}{12}$ / $\frac{71}{10}$ *1,2 =

$\frac{71}{12}$ * $\frac{10}{71}$ * 1,2 =  $\frac{10}{12}$*  $\frac{12}{10}$ = 1

Answer 2

Нууууууууу. я думаю правилны ответь 0.5

Answer 3

To solve the expression (2 1/4 + 3 2/3) / (8 1/2 - 1 2/5) * 1.2, we'll break it down step by step.

First, let's convert the mixed numbers into improper fractions: 2 1/4 = (2 * 4 + 1) / 4 = 9/4 3 2/3 = (3 * 3 + 2) / 3 = 11/3 8 1/2 = (8 * 2 + 1) / 2 = 17/2 1 2/5 = (1 * 5 + 2) / 5 = 7/5

Now, let's substitute the fractions back into the expression: (9/4 + 11/3) / (17/2 - 7/5) * 1.2

Next, we'll simplify the expression inside the parentheses: (27/12 + 44/12) / (85/10 - 14/10) * 1.2 (71/12) / (71/10) * 1.2

To divide fractions, we multiply the first fraction by the reciprocal of the second fraction: (71/12) * (10/71) * 1.2

Canceling out the common factors: (1/12) * 10 * 1.2

Now, let's multiply: 1/12 * 10 * 1.2 = 1 * 10 * 1.2 / 12 = 12/12 = 1

Therefore, the value of the expression (2 1/4 + 3 2/3) / (8 1/2 - 1 2/5) * 1.2 is 1.