Basic Math Examples

Simplify 7/12-4/9
712-49
Step 1
To write 712 as a fraction with a common denominator, multiply by 33.
71233-49
Step 2
To write -49 as a fraction with a common denominator, multiply by 44.
71233-4944
Step 3
Write each expression with a common denominator of 36, by multiplying each by an appropriate factor of 1.
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Step 3.1
Multiply 712 by 33.
73123-4944
Step 3.2
Multiply 12 by 3.
7336-4944
Step 3.3
Multiply 49 by 44.
7336-4494
Step 3.4
Multiply 9 by 4.
7336-4436
7336-4436
Step 4
Combine the numerators over the common denominator.
73-4436
Step 5
Simplify the numerator.
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Step 5.1
Multiply 7 by 3.
21-4436
Step 5.2
Multiply -4 by 4.
21-1636
Step 5.3
Subtract 16 from 21.
536
536
Step 6
The result can be shown in multiple forms.
Exact Form:
536
Decimal Form:
0.138
 [x2  12  π  xdx ]