What is (17^{-1}+4^{-1})/((17*4)^{-1)} ?

The solution to (17^{-1}+4^{-1})/((17*4)^{-1)} is 21

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simplify (17^{-1}+4^{-1})/((17*4)^{-1)}

simplify

\frac{1 7 ^{- 1} + 4 ^{- 1}}{( 17 \cdot 4 ) ^{- 1}}

21

Solution steps

\frac{1 7 ^{- 1} + 4 ^{- 1}}{( 17 \cdot 4 ) ^{- 1}}

Simplify

1 7^{- 1} + 4^{- 1} : \frac{21}{68}

= \frac{\frac{21}{68}}{( 17 \cdot 4 ) ^{- 1}}

Apply the fraction rule:

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

= \frac{21}{68 ( 17 \cdot 4 ) ^{- 1}}

Simplify

68 (17 \cdot 4)^{- 1} : 1

= \frac{21}{1}

Divide the numbers:

\frac{21}{1} = 21

= 21

x^{2} = 17

- 6 \geq \frac{5 - 3 x}{5}

6 x^{2} - 24 x

15 x^{2} + 2 x \geq 1

What is (17^{-1}+4^{-1})/((17*4)^{-1)} ?
The solution to (17^{-1}+4^{-1})/((17*4)^{-1)} is 21