Evaluate -1/3+2/7

Math
-13+27
To write -13 as a fraction with a common denominator, multiply by 77.
-13⋅77+27
To write 27 as a fraction with a common denominator, multiply by 33.
-13⋅77+27⋅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+27⋅33
Multiply 3 by 7.
-721+27⋅33
Multiply 27 and 33.
-721+2⋅37⋅3
Multiply 7 by 3.
-721+2⋅321
-721+2⋅321
Combine the numerators over the common denominator.
-7+2⋅321
Simplify the numerator.
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Multiply 2 by 3.
-7+621
Add -7 and 6.
-121
-121
Move the negative in front of the fraction.
-121
The result can be shown in multiple forms.
Exact Form:
-121
Decimal Form:
-0.047619‾
Evaluate -1/3+2/7

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