Deduce the missing monomial.

a) [[$ \displaystyle\frac {20ab} {?} = 2a $]]

b) [[$ \displaystyle\frac {6a^2b} {?} = 3a $]]

c) [[$ \displaystyle\frac {15a} {?} = 0 $]]

Take a picture of your solution and return it to the submission folder.

Solution