Florida B.E.S.T. MA.5.FR.2.2
The Standard
Extend previous understanding of multiplication to multiply a fraction by a fraction, including mixed numbers and fractions greater than 1, with procedural reliability.
Florida B.E.S.T. Standards for Mathematics
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students find products of two fractions, including improper fractions and mixed numbers. They convert mixed numbers when needed, multiply accurately, simplify, and check whether the answer makes sense.
What Mastery Looks Like
- Students correctly convert mixed numbers, multiply numerators and denominators, and simplify. They use models or estimates to check whether products are reasonable, including products greater than 1.
Common Misconceptions
- Students may multiply numerators but add denominators, or multiply whole-number and fraction parts separately. They may forget to convert mixed numbers or simplify the final product. Some expect multiplication always to make a number larger.
How to Assess It
- Ask: “Solve 1 1/2 × 4/5. Show each step, simplify the product, and explain whether your answer is reasonable.”
Lesson moves
Ways to Teach It
Fold a paper rectangle into thirds vertically and fourths horizontally, then shade overlapping parts to model 2/3 × 3/4.
Ask students to explain why 3/4 × 2/3 is smaller than either factor, using a model or words.
Give pairs task cards with fraction products and mixed-number products, then have partners solve, simplify, and check each other’s work.
Calculate how much flour is needed for 1 1/2 batches when one batch uses 3/4 cup of flour.
Free download
Printable MA.5.FR.2.2 Worksheet
A ready-to-print activity worksheet aligned to MA.5.FR.2.2, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
Download the worksheetKeep exploring
Related Standards
- MA.4.FR.2.2
Add and subtract fractions with like denominators, including mixed numbers and fractions greater than one, with procedural reliability.
- MA.6.NSO.2.2
Extend previous understanding of multiplication and division to compute products and quotients of positive fractions by positive fractions, including mixed numb...
- MA.6.NSO.4.2
Apply and extend previous understandings of operations with whole numbers to multiply and divide integers with procedural fluency.
- MA.4.FR.2.4
Extend previous understanding of multiplication to explore the multiplication of a fraction by a whole number or a whole number by a fraction.
Turn this exact standard into a lesson
Grade, subject, topic, and the complete standard are prefilled. Create one free, no account needed.