Question

-3 5/7 * (1 1/13+42/78) +1/4*2 1/2+2 1/2*(-5/4)

Answer 1

Ответ:

$-\frac{53}{8} \\-6\frac{5}{8} , - 6,625$

Пошаговое объяснение:

Answer 2

-3 + 5/7 * (1 + 1/13 + 42/78) + 1/4 * 2 + 1/2 + 2 + 1/2 * (-5/4)

First, let's simplify the expression inside the parentheses: 1 + 1/13 + 42/78 1 + 1/13 + 7/13 8/13

Now we can substitute this back into the original expression: -3 + 5/7 * 8/13 + 1/4 * 2 + 1/2 + 2 + 1/2 * (-5/4)

Next, let's multiply the fractions: 5/7 * 8/13 = 40/91 1/4 * 2 = 1/2 1/2 * (-5/4) = -5/8

Now we can substitute these back into the expression: -3 + 40/91 + 1/2 - 5/8 + 1/2 + 2

Now we can add and subtract the fractions and whole numbers: -3 + 40/91 + 1/2 - 5/8 + 1/2 + 2 -3 + 40/91 + 1/2 - 5/8 + 1/2 + 2 -3 + 40/91 + 4/8 - 5/8 + 4/8 + 16/8 -3 + 40/91 + 4/8 - 5/8 + 4/8 + 16/8 -3 + 40/91 + 25/8 -3 + 40/91 + 25/8

Now we can find a common denominator for the fractions: -3 + 40/91 + 25/8 -3 + 40/91 + 227/91

Now we can add the fractions: -3 + 40/91 + 227/91 -3 + 267/91

Finally, we can add the whole number and the fraction together: -3 + 267/91 -3 = -273/91

So the final answer is -273/91.