Basic Math Examples

Evaluate -3/5-4/7
3547
Step 1
To write 35 as a fraction with a common denominator, multiply by 77.
357747
Step 2
To write 47 as a fraction with a common denominator, multiply by 55.
35774755
Step 3
Write each expression with a common denominator of 35, by multiplying each by an appropriate factor of 1.
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Step 3.1
Multiply 35 by 77.
37574755
Step 3.2
Multiply 5 by 7.
37354755
Step 3.3
Multiply 47 by 55.
37354575
Step 3.4
Multiply 7 by 5.
37354535
37354535
Step 4
Combine the numerators over the common denominator.
374535
Step 5
Simplify the numerator.
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Step 5.1
Multiply 3 by 7.
214535
Step 5.2
Multiply 4 by 5.
212035
Step 5.3
Subtract 20 from 21.
4135
4135
Step 6
Move the negative in front of the fraction.
4135
Step 7
The result can be shown in multiple forms.
Exact Form:
4135
Decimal Form:
1.17142857
Mixed Number Form:
1635
 x2  12  π  xdx