Question

-2 1/4+0,54:(0,8*2,25-2,25)

Answer 1

1) 0,8*2,25=1,8
2) 1,8-2,25=-0,45
- 2 1/4 — переводим в десятичную дробь (2,25)
3) 2,25+0,54= 2,79
4) 2,79:0,45=6,2

Answer 2

To solve the expression, let's break it down step by step:

First, we'll simplify the expression inside the parentheses: 0,8 * 2,25 = 1.8 1.8 - 2.25 = -0.45

Now, let's continue solving the expression: 0.54 / -0.45 = -1.2

Finally, we'll add -2 1/4 to -1.2: To add mixed numbers, convert -2 1/4 to an improper fraction: -2 1/4 = -9/4

-9/4 + -1.2 = -9/4 - 6/5

To add fractions, we need to find a common denominator, which in this case is 20: -9/4 = -45/20 -6/5 = -24/20

Now we can add the fractions: -45/20 - 24/20 = -69/20

Therefore, the final result is -69/20.