10 printable sets · answer key on every set

Dividing With Unit Fractions Worksheets

CCSS 5.NF.B.7
20 problems per set
Answer key included

What this skill is

Dividing a unit fraction (one over a number) by a whole number, and a whole number by a unit fraction.

When it comes up: Fifth grade.

The mistake to watch for

Expecting a smaller answer when dividing a whole number by a fraction. 4 ÷ 1/3 asks how many thirds fit in 4, and that is 12.

How to help

Ask how many pieces fit: how many thirds in one whole? Three. So in 4 wholes there are 12.

Next: Dividing fractions by fractions in sixth grade.

A worked example

1/3 ÷ 4: cut one third into 4 equal pieces. Each piece is 1/12, so 1/3 ÷ 4 = 1/12. And 4 ÷ 1/3 asks how many thirds fit in 4: 3 in each whole, so 4 × 3 = 12.

Words to know

divide: To share a number into equal groups, or to find how many groups fit.
fraction: A number that names equal parts of a whole, like 3/4.
quotient: The answer you get when you divide.
denominator: The bottom number in a fraction. It tells how many equal parts the whole is cut into.
whole: All of something. In 3 + 4 = 7, the whole is 7.

Practice

Divide.

Showing Set 1 · 20 problems

5 ÷ 1/4 = ___
1/2 ÷ 5 = ___
4 ÷ 1/3 = ___
4 ÷ 1/4 = ___
2 ÷ 1/4 = ___
1/3 ÷ 4 = ___
1/4 ÷ 2 = ___
3 ÷ 1/3 = ___
1/2 ÷ 6 = ___
3 ÷ 1/5 = ___
3 ÷ 1/4 = ___
1/2 ÷ 3 = ___
4 ÷ 1/6 = ___
2 ÷ 1/2 = ___
3 ÷ 1/6 = ___
1/2 ÷ 2 = ___
1/4 ÷ 3 = ___
1/3 ÷ 6 = ___
6 ÷ 1/3 = ___
2 ÷ 1/5 = ___

Download this set20 problems · answer key included PDF

Answer key

20
1/10
12
16
8
1/12
1/8
9
1/12
15
12
1/6
24
4
18
1/4
1/12
1/18
18
10

All 10 sets

Each set is a different list of 20 problems with its own answer key. Use the buttons above to look at one on this page, or download any of them as a PDF.

How these sheets were made

Problems are generated for each set and checked against 5.NF.B.7 before the sheet is built — no duplicates, and every problem falls inside the standard's number range.