Question

why do we flip the second fraction when dividing and multiplying

Answer 1

When multiplying you don't flip.

When you divide you flip, like 4 divided by 2 is the same as 4 multiplied by 1/2

Answer 2

\[\frac{1/2}{3/1}=1/6\]
\[\frac{1}{2}*\frac{1}{3}=\frac{1}{6}\]

Answer 3

its more of a memory trick that makes the math easier to do

Answer 4

there is no rule that says; flip the bottom and multiply to divide; just as there is no rule that says, cross multiply either

Answer 5

these are tricks that you learn to make the math easier to do

Answer 6

\[\dfrac{\frac{1}{2}}{\frac{3}{1}}\]
\[\dfrac{\frac{1}{2}}{\frac{3}{1}}*\dfrac{\frac{1}{3}}{\frac{1}{3}}\]
\[\dfrac{\frac{1}{6}}{\frac{3}{3}}\]
\[\dfrac{\frac{1}{6}}{1}\]
\[\frac{1}{6}\]

Answer 7

your using a useful form of "1" to clear the bottom out.