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Determining common multiples- Home
- NZ Year 8 Maths
- Adding and Subtracting Fractions

Still Confused?

Try reviewing these fundamentals first

Basic Math

Divisibility rulesBasic Math

Determining Common FactorsBasic Math

Determining common multiplesStill Confused?

Try reviewing these fundamentals first

Basic Math

Divisibility rulesBasic Math

Determining Common FactorsBasic Math

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Get Started Now- Intro Lesson: a11:31
- Intro Lesson: b8:10
- Intro Lesson: c8:27
- Intro Lesson: d11:13
- Intro Lesson: e14:03
- Intro Lesson: f6:58
- Lesson: 1a8:14
- Lesson: 1b3:37
- Lesson: 2a7:29
- Lesson: 36:21
- Lesson: 43:39

In this section, we will write addition and subtraction statements for mixed numbers using given diagrams. First, we will add and subtract the whole numbers. Second, we will add and subtract the fractions. Some of the fractions will have like denominators and others will have unlike denominators. Before adding and subtracting those fractions with unlike denominators, we will have to determine the lowest common denominator for the pair of fractions and then write the equivalent fractions. We will write any resulting improper fractions in our answers as mixed numbers.

Basic Concepts:Multiplying improper fractions and mixed numbers, Dividing fractions and mixed numbers,

- Introductiona)Simplify fractions: Method A - By using greatest common factorsb)Simplify fractions: Method B - By using common factorsc)What are equivalent fractions?d)How to add fractions?e)How to subtract frations?

• subtracting with improper fractions

• subtracting with mixed numbersf)Proper fractions VS. Improper fractions VS. Mixed fractions - 1.Subtract or add using the given diagram.

a)

b)

- 2.Subtract or add.a)$1\frac{3}{6}+\frac{3}{8}$
- 3.Maren goes to soccer practice for $2\frac{4}{5}$ hour each day. In the morning, she has $1\frac{3}{4}$ hour of practice. How many hours of practice does she have in the afternoon?
- 4.Hannah ran for $1\frac{1}{4}$ hour and then biked for $1\frac{2}{3}$ hour. For how long did she exercise?

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