Question

3 1/4 * (- 32) - 1 2/13 * (- 2) + 8(- 30)

Answer 1

Ответ:

$-341\frac{9}{13}$

Пошаговое объяснение:

3 1/4 * (- 32) - 1 2/13 * (- 2) + 8(- 30) =

= 13/4 * (-32) - 15/13 * (-2) - 240 =

= - 104 + 30/13 - 240 =

= - 344 + 2 4/13 =

= - 341 9/13

Answer 2

To calculate the expression:

3 1/4 * (-32) - 1 2/13 * (-2) + 8 * (-30)

First, let's convert the mixed numbers to improper fractions:

3 1/4 = (4 * 3 + 1) / 4 = 13/4 1 2/13 = (13 * 1 + 2) / 13 = 15/13

Now, let's calculate each part of the expression:

(13/4) * (-32) = -416/4 = -104 (15/13) * (-2) = -30/13

Now, let's multiply 8 by -30:

8 * (-30) = -240

Now, let's put it all together:

-104 - (30/13) - 240

To combine the terms with different denominators, you can find a common denominator, which in this case is 13:

-104 * 13/13 - 30/13 - 240

Now, add the fractions with the same denominator:

(-135 - 30) / 13 - 240

Combine the numerators:

-165 / 13 - 240

To subtract fractions, you need a common denominator:

-165/13 - 240 * 13/13

Now, you can subtract the fractions:

(-165 - 3120) / 13

Combine the numerators:

-3285 / 13

So, the final result of the expression is:

-3285/13