Question

-(3,5*4/7-3.5:1 целая3/4)+(1,02-100)=?

Answer 1

/-дробная черта
1)3.5*4/7=2
2)1 целая 3/4=7/4
3)3.5=35/10
4)35/10=7/2
5)7/2 делим на 7/4=2
6)2-2=0
7)1.02=102/100
8)102/100=51/50
9)51/50-100=-4949/50

Answer 2

To solve the expression you provided: -(3.5 * 4 / 7 - 3.5 : 1 целая 3/4) + (1.02 - 100), we'll break it down step by step:

First, let's simplify the expression within the parentheses:

3.5 * 4 = 14 14 / 7 = 2

Next, we need to interpret "3.5:1 целая 3/4". It seems like a mixed number, where "целая" indicates the whole number part and "3/4" represents the fractional part. So, we have:

3.5:1 целая 3/4 = 3 3/4

Now, we can rewrite the original expression:

-(2 - 3 3/4) + (1.02 - 100)

To subtract the mixed numbers, we'll convert them into improper fractions:

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

Now we have:

-(2/1 - 15/4) + (1.02 - 100)

To simplify further, we'll find a common denominator for the fractions in the subtraction:

Common denominator for 1 and 15/4 is 4, so we rewrite the expression as:

-((2 * 4)/(1 * 4) - 15/4) + (1.02 - 100)

Now we can subtract the fractions:

-((8 - 15)/4) + (1.02 - 100)

Simplifying:

-(-7/4) + (1.02 - 100)

Negating a negative fraction gives us a positive fraction:

7/4 + (1.02 - 100)

Now we subtract the decimals:

7/4 - 98.98

To subtract a fraction from a decimal, we need a common denominator. Let's convert 98.98 into a fraction:

98.98 = 9898/100

Now we have:

7/4 - 9898/100

To find a common denominator, we multiply the numerator and denominator of the first fraction by 25:

7/4 * 25/25 - 9898/100

This gives us:

175/100 - 9898/100

Now we can subtract the fractions:

(175 - 9898)/100

Finally, we simplify:

-(9723/100)

Therefore, -(3,5 * 4 / 7 - 3.5 : 1 целая 3/4) + (1.02 - 100) equals -9723/100.