Question

5:(-1,25)+2,8*1/7+1/3

Answer 1

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Answer 2

To solve the expression 5:(-1,25)+2,8*1/7+1/3, let's break it down step by step:

Step 1: Simplify the division 5:(-1,25) means dividing 5 by (-1.25).

Dividing a number by a negative value can be done by flipping the signs and performing division with the absolute values. So, the expression becomes: 5 / (-1.25) = -4

Step 2: Multiply and divide Next, we calculate 2.8 * 1/7.

Multiplying 2.8 by 1 gives us 2.8, and dividing it by 7 gives us: 2.8 * 1/7 = 0.4

Step 3: Add fractions Finally, we add 0.4 to 1/3.

To add fractions, we need to find a common denominator. The common denominator here is 3. So, we convert 0.4 into a fraction with a denominator of 3: 0.4 = 0.4 * 3/3 = 1.2/3

Now, we can add 1/3 and 1.2/3: 1/3 + 1.2/3 = (1 + 1.2) / 3 = 2.2/3

Step 4: Add all the results We have calculated the individual results as follows: 5:(-1,25) = -4 2.8 * 1/7 = 0.4 1/3 + 1.2/3 = 2.2/3

Now, let's add these results together: -4 + 0.4 + 2.2/3

To add a fraction with a whole number, we need to convert the whole number into a fraction with the same denominator as the fraction. In this case, the denominator is already 3, so -4 can be written as -4/1: -4/1 + 0.4 + 2.2/3

Now, let's find a common denominator for the fractions: -4/1 = -12/3 0.4 = 0.4 * 3/3 = 1.2/3

Now, we can add the fractions: -12/3 + 1.2/3 + 2.2/3 = (-12 + 1.2 + 2.2) / 3 = -8/3

Therefore, the simplified result of the expression 5:(-1,25)+2,8*1/7+1/3 is -8/3.