MAST Grade 5 Add and Subtract Fractions. Practice it free.

Students add and subtract fractions with unlike denominators and apply those skills to real-world problems, including line-plot data. This Grade 5 reporting domain maps to 2 practice skills and 8 representative questions from the playable bank.

Grade 5Testlet 62 mapped skills

What the test measures

Add and Subtract Fractions skills

Add and subtract fractions with unlike denominators.
Apply fraction addition and subtraction skills to solve real-world problems and assess the reasonableness of the solution.
Standards: 5.NF.1, 5.NF.2, 5.MD.2

Standards basis

Montana PK-12 Mathematics Content Standards / Common Core State Standards for Mathematics (CCSS-M)-aligned Montana standards — Montana

How the MAST reports it

Montana’s MAST is a state-specific through-year assessment built by New Meridian and aligned to Montana’s academic content standards, not a Smarter Balanced-style claims/targets framework. The math blueprints organize content into grade-level strands/testlets that map directly to CCSS-M-derived Montana standards.

Blueprint & weighting

The blueprint publishes a through-year design of 12 strands/testlets per grade, with 1 strand per testlet, 2 reporting attributes per strand, and 9–13 items per testlet. It also specifies approximate item-type and DOK distributions, but does not publish percentage weighting by domain in the captured blueprint text.

Official sources

Montana OPI MontCAS
Montana OPI - MasteryGuide Mathematics Assessment Specifications and Blueprints
Montana OPI - Montana MAST Math Testlets

Practice by skill

Topics mapped to this domain

Data on line plots

Grade 519 questions

Adding and subtracting fractions

Grade 5210 questions

Try it now

8 free questions · 0/0 correct

Practice playeasy

A line plot (in cups) shows 2 at $\tfrac{1}{8}$ , 2 at $\tfrac{3}{8}$ , 1 at $\tfrac{1}{2}$ . What is the total amount of liquid?

Multiply each value by its count, then add: total $= \tfrac{3}{2}$ .

Practice playeasy

What is $\dfrac{5}{8} - \dfrac{3}{8}$ ?

Same denominator: $\dfrac{5 - 3}{8}$ . Result: $\dfrac{1}{4}$ .

Practice playeasy

A line plot (in cups) shows 2 at $\tfrac{2}{3}$ , 2 at $\tfrac{1}{3}$ . What is the total amount of liquid?

Multiply each value by its count, then add: total $= \tfrac{2}{1}$ .

Practice playeasy

What is $\dfrac{3}{6} + \dfrac{2}{3}$ ?

LCD is 6: $\dfrac{3}{6} + \dfrac{4}{6} = \dfrac{7}{6}$ .

Practice playeasy

A line plot (in cups) shows 4 at $\tfrac{1}{4}$ , 2 at $\tfrac{1}{2}$ . What is the total amount of liquid?

Multiply each value by its count, then add: total $= \tfrac{2}{1}$ .

Practice playeasy

What is $\dfrac{1}{2} - \dfrac{1}{5}$ ?

LCD is 10: $\dfrac{5}{10} - \dfrac{2}{10} = \dfrac{3}{10}$ .

Practice playeasy

Four beakers hold $\tfrac{1}{2}$ , $\tfrac{1}{2}$ , $\tfrac{1}{4}$ , and $\tfrac{3}{4}$ liters. If the liquid is shared equally among the 4 beakers, how much is in each?