5. Fractions

Lesson

Identifying numbers that are multiples of other numbers is very useful when we work with fractions.

True or False: 18 is a multiple of 3.

Worked Solution

Idea summary

Factors and multiples are related to multiplication facts. Writing out a multiplication problem, such as 4\times 6=24 can help us remember which is which.

This video shows us how to find equivalent fractions so that we end up with common denominators.

Find the equivalent fraction:\dfrac{3\times 2}{5\times 2}=\dfrac{6}{⬚}

Worked Solution

Idea summary

To find an equivalent fraction, we must multiply the denominator and numerator by the same number.

Solve problems involving addition and subtraction of fractions with the same or related denominators