Evaluate 1/3-5/7

Math
13-57
To write 13 as a fraction with a common denominator, multiply by 77.
13⋅77-57
To write -57 as a fraction with a common denominator, multiply by 33.
13⋅77-57⋅33
Write each expression with a common denominator of 21, by multiplying each by an appropriate factor of 1.
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Multiply 13 and 77.
73⋅7-57⋅33
Multiply 3 by 7.
721-57⋅33
Multiply 57 and 33.
721-5⋅37⋅3
Multiply 7 by 3.
721-5⋅321
721-5⋅321
Combine the numerators over the common denominator.
7-5⋅321
Simplify the numerator.
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Multiply -5 by 3.
7-1521
Subtract 15 from 7.
-821
-821
Move the negative in front of the fraction.
-821
The result can be shown in multiple forms.
Exact Form:
-821
Decimal Form:
-0.380952‾
Evaluate 1/3-5/7

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