Evaluate 1/3+1/21

Math
13+121
To write 13 as a fraction with a common denominator, multiply by 77.
13⋅77+121
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+121
Multiply 3 by 7.
721+121
721+121
Combine the numerators over the common denominator.
7+121
Add 7 and 1.
821
The result can be shown in multiple forms.
Exact Form:
821
Decimal Form:
0.380952‾
Evaluate 1/3+1/21

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