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Basic Math

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Determining Common FactorsBasic Math

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

Determining common multiplesNope, got it.

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Get Started Now- Intro Lesson: a11:31
- Intro Lesson: b8:10
- Lesson: 1a2:25
- Lesson: 1b2:20
- Lesson: 1c3:38
- Lesson: 24:47
- Lesson: 33:12
- Lesson: 4a5:19
- Lesson: 4b3:10
- Lesson: 4c4:06
- Lesson: 4d3:18

In this section, we will subtract fractions with like denominators using subtraction statements. When subtracting fractions with like denominators, we subtract the numerators; however, the denominators stay the same. As shown in section on adding fractions with like denominators, we will write our answers in lowest terms by first finding the greatest common factor (GCF) of both the numerator and denominator and then dividing both the numerator and denominator by this GCF.

Related Concepts: Multiplying fractions and whole numbers, Dividing fractions with whole numbers, Multiplying proper fractions

In this lesson, we will learn:

- Subtracting Fractions With Small Numbers
- Word Problems: Subtracting Fractions
- Subtracting Fractions With Large Numbers

- IntroductionHow to simplify fractions?a)Method A: Simplify by using greatest common factorsb)Method B: Simplify by using common factors
- 1.
**Subtracting Fractions With Small Numbers**

Subtract. Then, simplify when possible.a)$\frac{6}{8}-\frac{7}{8}$b)$\frac{10}{11}-\frac{9}{11}$c)1 - $\frac{12}{24}$ - 2.
**Word Problems: Subtracting Fractions**

Marry is swimming 200m of freestyle at a competition. She still has $\frac{7}{10}$ of the race to go. If she swims $\frac{2}{10}$ more of the race, will she be halfway through? Show your work. - 3.Teresa and Maggie buy a bag of chips at the store. Teresa eats $\frac{2}{9}$ of the bag and Maggie eats $\frac{5}{9}$ of the bag. How much of the bag is left?
- 4.
**Subtracting Fractions With Large Numbers**

Subtract. Then, simplify when possible.a)$\frac{726}{780} - \frac{126}{780}$b)$\frac{231}{260} - \frac{84}{260}$c)$\frac{129}{693} - ( - \frac{213}{693} )$d)$\frac{265}{380} - \frac{78}{380} - \frac{103}{380}$