Evaluate 1/3+1/9-1/27-1/81

Math
13+19-127-181
To write 13 as a fraction with a common denominator, multiply by 33.
13⋅33+19-127-181
Write each expression with a common denominator of 9, by multiplying each by an appropriate factor of 1.
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Multiply 13 and 33.
33⋅3+19-127-181
Multiply 3 by 3.
39+19-127-181
39+19-127-181
Combine the numerators over the common denominator.
3+19-127-181
Add 3 and 1.
49-127-181
To write 49 as a fraction with a common denominator, multiply by 33.
49⋅33-127-181
Write each expression with a common denominator of 27, by multiplying each by an appropriate factor of 1.
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Multiply 49 and 33.
4⋅39⋅3-127-181
Multiply 9 by 3.
4⋅327-127-181
4⋅327-127-181
Combine the numerators over the common denominator.
4⋅3-127-181
Simplify the numerator.
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Multiply 4 by 3.
12-127-181
Subtract 1 from 12.
1127-181
1127-181
To write 1127 as a fraction with a common denominator, multiply by 33.
1127⋅33-181
Write each expression with a common denominator of 81, by multiplying each by an appropriate factor of 1.
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Multiply 1127 and 33.
11⋅327⋅3-181
Multiply 27 by 3.
11⋅381-181
11⋅381-181
Combine the numerators over the common denominator.
11⋅3-181
Simplify the numerator.
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Multiply 11 by 3.
33-181
Subtract 1 from 33.
3281
3281
The result can be shown in multiple forms.
Exact Form:
3281
Decimal Form:
0.39506172…
Evaluate 1/3+1/9-1/27-1/81

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