Question

6 1/4 -8+(-1 3/4)+2.5-10

Answer 1

Ответ:

решения на фотографиях

Answer 2

To solve this expression, you can follow these steps:

1. Convert all the mixed numbers into improper fractions.
2. Perform the arithmetic operations from left to right.

Let's break it down step by step:

1. Convert the mixed numbers to improper fractions:
   • 6 1/4 = 25/4
   • -1 3/4 = -7/4
   • 10 = 10

Now, the expression becomes:

(25/4) - 8 + (-7/4) + 2.5 - 10

2. Perform the arithmetic operations from left to right:

First, add the fractions: (25/4) + (-7/4) = 18/4 = 9/2

Now, the expression becomes:

(9/2) - 8 + 2.5 - 10

Now, perform the remaining operations:

(9/2) - 8 = (9/2) - (16/2) = (-7/2) 2.5 - 10 = -7.5

Now, the expression becomes:

(-7/2) + (-7.5)

To add these fractions, find a common denominator, which is 2:

(-7/2) = (-14/4)

Now, the expression becomes:

(-14/4) + (-7.5)

Now, add the fractions:

(-14/4) + (-7.5) = (-14/4) - (30/4) = -44/4 = -11

So, the result of the expression is -11.