Basic Math Examples

Evaluate 2/7-3/4
27-34
Step 1
To write 27 as a fraction with a common denominator, multiply by 44.
2744-34
Step 2
To write -34 as a fraction with a common denominator, multiply by 77.
2744-3477
Step 3
Write each expression with a common denominator of 28, by multiplying each by an appropriate factor of 1.
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Step 3.1
Multiply 27 by 44.
2474-3477
Step 3.2
Multiply 7 by 4.
2428-3477
Step 3.3
Multiply 34 by 77.
2428-3747
Step 3.4
Multiply 4 by 7.
2428-3728
2428-3728
Step 4
Combine the numerators over the common denominator.
24-3728
Step 5
Simplify the numerator.
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Step 5.1
Multiply 2 by 4.
8-3728
Step 5.2
Multiply -3 by 7.
8-2128
Step 5.3
Subtract 21 from 8.
-1328
-1328
Step 6
Move the negative in front of the fraction.
-1328
Step 7
The result can be shown in multiple forms.
Exact Form:
-1328
Decimal Form:
-0.46428571
 [x2  12  π  xdx ]