Question

5^-1+(1by3)^-2+(3)^-1​

Answer 1

Answer:

• 5⁻¹ = 1/5
• (1/3)⁻² = 3² = 9
• 3⁻¹ = 1/3

⇒ 1/5 + 9 + 1/3

⇒9/45 + 405/45 + 15/45

⇒ 429/45 is the answer

Answer 2

Question:

${5}^{ - 1} + {( \frac{1}{3}) }^{ - 2} + {3}^{ - 1}$

Answer:

$\boxed{≈9.533} \: is \: your \: answer.$

Step-by-step-explanation:

${5}^{ - 1} + {( \frac{1}{3}) }^{ - 2} + {3}^{ - 1}$

We know that,

${5}^{ - 1} = \frac{1}{5}$

${ (\frac{1}{3}) }^{ - 2} = {3}^{2} = 9$

${3}^{ - 1} = \frac{1}{3}$

Now, substituting

$= \frac{1}{5} + 9 + \frac{1}{3}$

$L.C.M \: is \: \boxed{15}$

$= \frac{3 + 135 + 5}{15}$

$= \frac{143}{15}$

$\boxed{≈9.533}$