Worked Example 1
Part of a Shape
A pizza is cut into 6 equal slices. What fraction of the pizza is one slice?
- 1The whole pizza is split into 6 equal parts.
- 2One slice is 1 of the 6 equal parts.
Answer: 16
Florida Grade 3 Math · Fractions
MA.3.FR.1.1: Unit Fractions
What this Grade 3 benchmark means, worked examples, common mistakes, and a free printable worksheet.
Created by a Florida mom · Published by Tropical Learning LLC
What Is Benchmark MA.3.FR.1.1?
A unit fraction has 1 on top, like 14. It is one part when a whole is split into equal parts. 14 is one of 4 equal parts.
Students show unit fractions as part of a shape, part of a set, and a point on a number line. In Grade 3, denominators are 2, 3, 4, 5, 6, 8, 10, and 12.
Official benchmarkRepresent and interpret unit fractions in the form 1/n as the quantity formed by one part when a whole is partitioned into n equal parts.
On the FAST test: part of the Grade 3 reporting category Fractional Reasoning, which is about 23–29% of the test.
Worked Examples
Worked Example 2
On a Number Line
A number line from 0 to 1 is split into 4 equal parts. What fraction is at the first mark after 0?
- 1The distance from 0 to 1 is the whole.
- 2It is split into 4 equal parts, so each part is 14.
- 3The first mark after 0 is one part from 0.
Answer: 14
Common Mistakes to Watch For
Calling unequal parts fractions
Wrong:A rectangle is cut into 3 different-sized pieces, so each piece is 13.
Thirds must be equal. If the parts are not the same size, a part is not 13 of the whole.
Thinking a bigger denominator means a bigger fraction
Wrong:18 > 14
The more equal parts the whole is cut into, the smaller each part: 18 < 14.
Helpful Math Tip
Fold paper strips into 2, 4, and 8 equal parts and line them up. Seeing that 18 is the smallest piece helps fix the "bigger denominator" mix-up.
Related Grade 3 Skills
Make Florida Math Practice More Fun
Help your child build math confidence with original interactive questions aligned with Florida's B.E.S.T. Mathematics Standards.
Start Practicing FreeIndependent Educational Platform. FastChomp is published by Tropical Learning LLC and is not affiliated with, sponsored by, or endorsed by the Florida Department of Education. FAST and Star assessment names are referenced for informational purposes only. FastChomp practice questions are original educational materials, not official Florida FAST assessment questions.