Evaluate 1/5-4/7

Math
15-47
To write 15 as a fraction with a common denominator, multiply by 77.
15⋅77-47
To write -47 as a fraction with a common denominator, multiply by 55.
15⋅77-47⋅55
Write each expression with a common denominator of 35, by multiplying each by an appropriate factor of 1.
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Multiply 15 and 77.
75⋅7-47⋅55
Multiply 5 by 7.
735-47⋅55
Multiply 47 and 55.
735-4⋅57⋅5
Multiply 7 by 5.
735-4⋅535
735-4⋅535
Combine the numerators over the common denominator.
7-4⋅535
Simplify the numerator.
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Multiply -4 by 5.
7-2035
Subtract 20 from 7.
-1335
-1335
Move the negative in front of the fraction.
-1335
The result can be shown in multiple forms.
Exact Form:
-1335
Decimal Form:
-0.3714285‾
Evaluate 1/5-4/7

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