
2 3/4-(-1 1/2)+(-3 5/6)=????


Ответы на вопрос




To solve the expression 2 3/4 - (-1 1/2) + (-3 5/6), you can follow these steps:
Step 1: Subtract the negative fraction: 2 3/4 - (-1 1/2) = 2 3/4 + 1 1/2
Step 2: Add the mixed numbers: To add mixed numbers, first add the whole numbers, and then add the fractions separately.
Whole numbers: 2 + 1 = 3
Now, let's add the fractions: 3/4 + 1/2
To add these fractions, you need a common denominator, which in this case is 4. So, you'll need to convert 1/2 to an equivalent fraction with a denominator of 4:
1/2 = 2/4
Now, you can add the fractions: 3/4 + 2/4 = 5/4
Step 3: Add the remaining negative fraction: Now, you have:
3 (whole number part) + 5/4 (fraction part)
Step 4: Add the last negative fraction: Next, you need to add the last negative fraction, -3 5/6.
First, subtract the whole numbers: -3 - 3 = -6
Now, let's add the fractions. To do this, you'll need a common denominator, which is 4:
5/4 (from the previous step) - 5/6
To find a common denominator between 4 and 6, you can use 12:
5/4 * 3/3 = 15/12 5/6 * 2/2 = 10/12
Now, you can subtract the fractions:
15/12 - 10/12 = 5/12
Step 5: Combine the results: Now, you have:
-6 (whole number part) + 5/12 (fraction part)
So, the final result is:
-6 + 5/12
To make this a mixed number, you can simplify the fraction:
-6 + 5/12 = -6 + 5/12
So, 2 3/4 - (-1 1/2) + (-3 5/6) = -6 + 5/12 or -6 5/12.


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