DIVIDING FRACTIONS THINK KENTUCKY CHICKEN FRIED

$When dividing fractions remember KCF$

Shouldn’t it be KFC? No it’s swapped around.

Notice the name is switched a little from that most famous fast chicken joint to KENTUCKY CHICKEN FRIED.

K – Keep (the first fraction)

C – Change (the sign from divide to multiply)

F – Flip (the last fraction)

Example 1

$Remember to keep change and flip when dividing fractions$

And from multiplication of fractions we know that

`1/2 \times2/1=(1times2)/(2times1)=2/2=1`

Example 2

Work out `3/4\div1/3`

$Remember to keep change and flip when dividing fractions$

And from multiplication of a fraction we know that

`3/4\times3/1=(3\times3)/(4times1)=9/4=2\1/4`

Example 3

Work out `1\3/4\div2\1/2`

This means work out `7/4\div5/2`

$Remember to keep change and flip when dividing fractions$

And from multiplication of a fraction we know that

`7/4\times2/5=(7times2)/(4times5)=14/20=7/10`