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Mixed & Improper Fractions

PROCEDURAL
MathematicsFractions|Ages 11—13|ID: mt_gNUE4B3vuk

Use the four operations with formal written methods applied to integers, decimals, proper and improper fractions, and mixed numbers, all both positive and negative

Mastery Evidence

  • Add, subtract, multiply, and divide with positive and negative integers
  • Apply formal written methods to calculations with decimals of any size
  • Perform all four operations with proper fractions, improper fractions, and mixed numbers

Assessment Prompt

“If [child] needs to work out −1/2 + 3/4 − 1 and 1/4 as part of a longer problem, can they do it using written methods — showing each step clearly?”

Curriculum Standards4 alignments

6.NS.1Common Core State Standards for Mathematics
Interpret and Compute Quotients of Fractions

Interpret and compute quotients of fractions, and solve word problems involving division of fractions by fractions, e.g., by using visual fraction models and equations to represent the problem. For example, create a story context for (2/3) ÷ (3/4) and use a visual fraction model to show the quotient; use the relationship between multiplication and division to explain that (2/3) ÷ (3/4) = 8/9 because 3/4 of 8/9 is 2/3. (In general, (a/b) ÷ (c/d) = ad/bc.) How much chocolate will each person get if 3 people share 1/2 lb of chocolate equally? How many 3/4-cup servings are in 2/3 of a cup of yogurt? How wide is a rectangular strip of land with length 3/4 mi and area 1/2 square mi?

NS
6.NS.3Common Core State Standards for Mathematics
Fluently Compute with Multi-Digit Decimals

Fluently add, subtract, multiply, and divide multi-digit decimals using the standard algorithm for each operation.

NS
7.NS.3Common Core State Standards for Mathematics
Solve real-world and mathematical problems involving the four operations with rational numbers

Solve real-world and mathematical problems involving the four operations with rational numbers.

NS
KS3.Maths.Num.4The national curriculum in England
The Four Operations

use the 4 operations, including formal written methods, applied to integers, decimals, proper and improper fractions, and mixed numbers, all both positive and negative

Mathematics · Key Stage 3

Prerequisites3

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