Question

Jonathan is making his favorite pasta dish he served his mom 1/12 of the pot of pasta and his brother 1/6 of the pot. how much of the pot is left over?

Answer 1

3/4
1/6 of the pot is 2/12
1/12 + 2/12 is 3/12
1 - 3/12 is 9/12 = 3/4

3/4 of the pot is left over

Answer 2

Portion served to both mother and brother
$= \frac{1}{12} + \frac{1}{6} \\ \frac{1 + 2}{12} \\ = \frac{3}{12}$
remaining portion
$1 - \frac{3}{12}$
=
$\frac{12}{12} - \frac{3}{12}$
=
$\frac{9}{12} = \frac{3}{4}$