Question

Why $\frac{\frac{1}{2}\times\frac{k}{k+7}}{\frac{1}{2}\times\frac{k}{k+7} \ \ +\frac{1}{2}\times\frac{2}{5}} = \frac{k}{k+\frac{2}{5}(k+7)}$?

score 85 · Answer 1 · 2018-05-26 12:40:28

Why $\frac{\frac{1}{2}\times\frac{k}{k+7}}{\frac{1}{2}\times\frac{k}{k+7} \ \ +\frac{1}{2}\times\frac{2}{5}} = \frac{k}{k+\frac{2}{5}(k+7)}$?

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List Question

Why $\frac{\frac{1}{2}\times\frac{k}{k+7}}{\frac{1}{2}\times\frac{k}{k+7} \ \ +\frac{1}{2}\times\frac{2}{5}} = \frac{k}{k+\frac{2}{5}(k+7)}$?

A geometric inequality in a triangle

Integers and Fractions.

What does "$-2\frac35$" mean?

Will this equation ever have an positive integer value?

Partial fraction expansion problem

Which rule has more hierarchy?

Find a fraction $\frac{m}{n}$ which satisfies the given condition

How could a square root of fraction have a negative root?

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Question on Fraction Cancellation

Why is a machine producing 7 nails in 9 seconds faster than one producing 11 nails in 14 seconds?

a polynomial of degree $4$ such that $P(n) = \frac{120}{n}$ for $n=1,2,3,4,5$

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