Gr 8 (Fractions)

Key Topics and Skills:

Fractions:

• Operations: Addition, subtraction, multiplication, division

• Conversions: Mixed numbers to fractions

• Simplification: Using multiples and factors

• Equivalent fractions: Adding and subtracting

COMMON FRACTIONS

Calculations with fractions

• Divide whole numbers and common fractions by common fractions

• Calculate the squares, cubes, square roots and cube roots of common fractions

• Calculate amounts if given percentage increase or decrease

• Calculations and solving problems

Calculation techniques

• Use knowledge of reciprocal relationships to divide common fractions

Percentage

• Calculate amounts if given percentage increase or decrease

Solving problems

• Solve problems in contexts involving common fractions and mixed numbers, including grouping, sharing and finding fractions of whole numbers

• Solve problems in contexts involving percentages

• Addition and subtraction to fractions where one denominator is not a multiple of the other 

• Multiplication of common fractions, including mixed numbers, not limited to fractions where one denominator is a multiple of another 

• Converting mixed numbers to common fractions 

• Use knowledge of multiples and factors to write fractions in the simplest form before or after calculations 

• Use knowledge of equivalent fractions to add and subtract common fractions in order to perform calculations with them

• Calculate the percentage of part of a whole

• Calculate percentage increase or decrease of whole numbers