Melinda drew a model to determine how many fourths are in 3 wholes.

Three circles are shown. Each circle is divided into 4 fourths.

Which of the following division problems describes Melinda's work?
4 divided by 3=4/3
3 divided by 1/4= 12
4 divided by 1/3=12
3 divided by 4= 3/4

The answer is "3 divided by 1/4 = 12". Melinda's model shows that there are 12 fourths in 3 wholes, and this can be represented mathematically by dividing 3 by 1/4 (which is the same as multiplying by 4/1 or 4).