# Evaluate 1/9-1/81+1/729 19-181+1729
To write 19 as a fraction with a common denominator, multiply by 99.
19⋅99-181+1729
Write each expression with a common denominator of 81, by multiplying each by an appropriate factor of 1.
Multiply 19 and 99.
99⋅9-181+1729
Multiply 9 by 9.
981-181+1729
981-181+1729
Combine the numerators over the common denominator.
9-181+1729
Subtract 1 from 9.
881+1729
To write 881 as a fraction with a common denominator, multiply by 99.
881⋅99+1729
Write each expression with a common denominator of 729, by multiplying each by an appropriate factor of 1.
Multiply 881 and 99.
8⋅981⋅9+1729
Multiply 81 by 9.
8⋅9729+1729
8⋅9729+1729
Combine the numerators over the common denominator.
8⋅9+1729
Simplify the numerator.
Multiply 8 by 9.
72+1729
Add 72 and 1.
73729
73729
The result can be shown in multiple forms.
Exact Form:
73729
Decimal Form:
0.10013717…
Evaluate 1/9-1/81+1/729

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