What is 1/3+1/9+1/27+1/81 ?

The solution to 1/3+1/9+1/27+1/81 is 40/81

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simplify 1/3+1/9+1/27+1/81

simplify

\frac{1}{3} + \frac{1}{9} + \frac{1}{27} + \frac{1}{81}

\frac{40}{81}

Decimal Notation

0.49382 \dots

Solution steps

\frac{1}{3} + \frac{1}{9} + \frac{1}{27} + \frac{1}{81}

Least Common Multiplier of

3, 9, 27, 81 : 81

Adjust Fractions based on the LCM

= \frac{27}{81} + \frac{9}{81} + \frac{3}{81} + \frac{1}{81}

Apply the fraction rule:

\frac{a}{c} + \frac{b}{c} = \frac{a + b}{c}

= \frac{27 + 9 + 3 + 1}{81}

Add the numbers:

27 + 9 + 3 + 1 = 40

= \frac{40}{81}

∣ x + 5 ∣ > 2

x^{4} - 4 x^{3} + 3 x^{2} + 4 x - 4 = (1 - x)^{4} - 3 x^{2} + 2 x - 5

6 x^{3} - 7 x^{2} - 11 x + 12

12 + 4

42 + 12 u = 2