FAST Grade 4 Fractional Reasoning. Practice it free.

Measures understanding and use of fractions, including equivalence and operations with fractions. This Grade 4 reporting domain maps to 1 practice skill and 8 representative questions from the playable bank.

Grade 41 mapped skills

What the test measures

Fractional Reasoning skills

4.FR.1.1, 4.FR.1.2, 4.FR.1.3, 4.FR.2.1, 4.FR.2.2, 4.FR.2.3

Standards basis

Florida B.E.S.T. Standards — Florida

How the FAST reports it

Florida’s FAST Mathematics is a state-specific assessment program aligned to the Florida B.E.S.T. Standards rather than a national framework. The published blueprint organizes results by reporting categories derived from B.E.S.T. domains, with separate blueprints for grades 3-8 FAST Mathematics and the B.E.S.T. Algebra 1 and Geometry EOCs.

Blueprint & weighting

Florida publishes blueprint percentage ranges by reporting category. The 2025-26 fact sheet states each PM event is tied to a blueprint for the full grade-level content, and the test design summary gives approximate item ranges per reporting category; the reporting-category statements note that a minimum of 15% of raw score points should come from each reporting category, with some domains combined when needed.

Official sources

Florida Department of Education FAST Assessments page
Florida Department of Education B.E.S.T. Mathematics Reporting Category Statements
Florida Department of Education B.E.S.T. Mathematics Test Design Summary

Practice by skill

Topics mapped to this domain

Fraction equivalence and simplification

Grade 4217 questions

Try it now

8 free questions · 0/0 correct

Practice playeasy

Which fraction is equivalent to $\dfrac{2}{5}$ ?

Multiply both parts of $\dfrac{2}{5}$ by 2: $\dfrac{4}{10}$ .

Practice playeasy

Fill in: $\dfrac{2}{4} = \dfrac{\square}{8}$ .

Multiply numerator and denominator by 2: $\dfrac{2 \times 2}{4 \times 2} = \dfrac{4}{8}$ .

Practice playeasy

Simplify $\dfrac{4}{16}$ to lowest terms.

GCF of 4 and 16 is 4: $\dfrac{4 \div 4}{16 \div 4} = \dfrac{1}{4}$ .

Practice playeasy

Find the equivalent fraction: $\dfrac{6}{7} = \dfrac{?}{14}$ .

Multiply top and bottom by 2: $\dfrac{6 \times 2}{7 \times 2} = \dfrac{12}{14}$ .

Practice playeasy

Which fraction is equivalent to $\dfrac{2}{3}$ ?

Multiply both parts of $\dfrac{2}{3}$ by 4: $\dfrac{8}{12}$ .

Practice playeasy

Fill in: $\dfrac{1}{5} = \dfrac{\square}{25}$ .

Multiply numerator and denominator by 5: $\dfrac{1 \times 5}{5 \times 5} = \dfrac{5}{25}$ .

Practice playeasy

Simplify $\dfrac{20}{32}$ to lowest terms.

GCF of 20 and 32 is 4: $\dfrac{20 \div 4}{32 \div 4} = \dfrac{5}{8}$ .

Practice playeasy

Find the equivalent fraction: $\dfrac{5}{7} = \dfrac{?}{28}$ .

Multiply top and bottom by 4: $\dfrac{5 \times 4}{7 \times 4} = \dfrac{20}{28}$ .

Keep practicing

Turn fractional reasoning into game time.

The FAST placement starts with this test's real coverage map and finds the right difficulty.

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Related Common Core standards

Fractional Reasoning in other FAST grades

Grade 5 Grade 6 Grade 7 Grade 8 Algebra 1 EOC

Source and test overview

All FAST prep Official test source

Reporting categories

More Grade 4 domains

Number Sense and OperationsMeasures number sense, place value, operations with whole numbers, and related reasoning.8 QsPractice →Geometric Reasoning and MeasurementMeasures geometry and measurement concepts, including line segments, angles, perimeter, area, and coordinate-related reasoning.8 QsPractice →Geometric Reasoning, Measurement, and Data Analysis and ProbabilityMeasures geometry, measurement, and data/probability skills, including interpreting and representing data and probability situations.8 QsPractice →