# Math Help - Dividing mixed numbers and fractions.

1. ## Dividing mixed numbers and fractions.

I need steps and the answer of 20 and 1/4 divided 90

2. This is 'poor' TeX rendering: $20{\raise0.5ex\hbox{\scriptstyle 1}\kern-0.1em/\kern-0.15em\lower0.25ex\hbox{\scriptstyle 4}} = \frac{{81}}{4}$
Now divide that by 90.

3. Im really bad in mouth so how do i divide 81 over 4 by 90. Im still confused on this problem. Do i divide 81 by 4 and then divide that by 90?

4. Originally Posted by nykhris22
Im really bad in mouth so how do i divide 81 over 4 by 90. Im still confused on this problem. Do i divide 81 by 4 and then divide that by 90?
Here is a similar one. Learn from it:

$\frac{79}{3} \div 80 = \frac{79}{3} \div \frac{80}{1} = \frac{79}{3} \times \frac{1}{80} = \frac{79 \times 1}{3 \times 80} = \frac{79}{240}$