Unit 2: Equivalent Fractions
Unit 2 Review
- Find all the factors for each number. If a number is a prime number, write “prime” next to it.
- 4
- 10
- 21
- 6
- 2
- 16
- Find the factors, common factors and the Greatest Common Factor (GCF).
Factors Activity Factors Common Factors GCF [latex]\dfrac{2}{8}[/latex] Numerator: Denominator:
[latex]\dfrac{8}{16}[/latex] Numerator: Denominator:
[latex]\dfrac{24}{32}[/latex] Numerator: Denominator:
[latex]\dfrac{9}{12}[/latex] Numerator: Denominator:
[latex]\dfrac{5}{15}[/latex] Numerator: Denominator:
[latex]\dfrac{25}{30}[/latex] Numerator: Denominator:
[latex]\dfrac{4}{12}[/latex] Numerator: Denominator:
- Express each fraction in lowest terms. Remember: be sure to write the greatest common factor (GCF) you are dividing with.
- [latex]\dfrac{6}{9}=[/latex]
- [latex]\dfrac{6}{18}=[/latex]
- [latex]\dfrac{12}{28}=[/latex]
- [latex]\dfrac{15}{30}=[/latex]
- [latex]\dfrac{4}{24}=[/latex]
- [latex]\dfrac{10}{18}=[/latex]
- Circle the fractions that are in lowest terms.
- [latex]\dfrac{1}{2}[/latex]
- [latex]\dfrac{3}{6}[/latex]
- [latex]\dfrac{4}{5}[/latex]
- [latex]\dfrac{3}{9}[/latex]
- [latex]\dfrac{4}{8}[/latex]
- [latex]\dfrac{5}{10}[/latex]
- Find all the fractions that are not already in lowest terms and reduce them. Write “lowest terms” next to those already reduced.
- [latex]\dfrac{4}{8}=[/latex]
- [latex]\dfrac{2}{5}=[/latex]
- [latex]\dfrac{8}{12}=[/latex]
- [latex]\dfrac{15}{35}=[/latex]
- [latex]\dfrac{42}{80}=[/latex]
- [latex]\dfrac{6}{36}=[/latex]
- [latex]\dfrac{9}{15}=[/latex]
- Indicate if each pair of fractions is equivalent (=) or not equivalent (≠).
- [latex]\dfrac{4}{5}\phantom{=}\dfrac{7}{8}[/latex]
- [latex]\dfrac{10}{12}\phantom{=}\dfrac{5}{6}[/latex]
- [latex]\dfrac{5}{15}\phantom{=}\dfrac{1}{3}[/latex]
- [latex]\dfrac{6}{7}\phantom{=}\dfrac{36}{41}[/latex]
- [latex]\dfrac{3}{5}\phantom{=}\dfrac{15}{25}[/latex]
- Round to the nearest whole number
- [latex]1\dfrac{1}{4}=[/latex]
- [latex]4\dfrac{3}{4}=[/latex]
- [latex]6\dfrac{4}{5}=[/latex]
- [latex]3\dfrac{1}{4}=[/latex]
- [latex]12\dfrac{8}{9}=[/latex]
Answers to Unit 2 Review
- Find all the factors for each number, some of the numbers are prime numbers, write “prime” next to it.
- 1, 2, 4
- 1, 2, 5, 10
- 1, 3, 7, 21
- 1, 2, 3, 6
- 1, 2, prime
- 1, 2, 4, 8, 16
- Find the factors, common factors and the Greatest Common Factor (GCF).
Greatest Common Factors (GCF) Factors Common Factors GCF [latex]\dfrac{2}{8}[/latex] Numerator: 1, 2 Denominator: 1, 2, 4, 8
1, 2 2 [latex]\dfrac{8}{16}[/latex] Numerator: 1, 2, 4, 8 Denominator: 1, 2, 4, 8, 16
2, 4, 8 8 [latex]\dfrac{24}{32}[/latex] Numerator: 1, 2, 3, 4, 6, 8, 12, 24 Denominator: 1, 2, 4, 8, 16, 32
2, 4, 8 8 [latex]\dfrac{9}{12}[/latex] Numerator: 1, 3, 9 Denominator: 1, 2, 3, 4, 6, 12
3 3 [latex]\dfrac{5}{15}[/latex] Numerator: 1, 5 Denominator: 1, 3, 5, 15
5 5 [latex]\dfrac{25}{30}[/latex] Numerator: 1, 5, 25 Denominator: 1, 2, 3, 5, 6, 10, 15, 30
5 5 [latex]\dfrac{4}{12}[/latex] Numerator: 1, 2, 4 Denominator: 1, 2, 3, 4, 6, 12
24 4 - Express each fraction in lowest terms. Remember: be sure to write the GCF you are dividing with.
- [latex]\dfrac{2}{3}[/latex]
- [latex]\dfrac{1}{3}[/latex]
- [latex]\dfrac{3}{7}[/latex]
- [latex]\dfrac{1}{2}[/latex]
- [latex]\dfrac{1}{6}[/latex]
- [latex]\dfrac{7}{8}[/latex]
- [latex]\dfrac{5}{9}[/latex]
- Circle the fractions that are in lowest terms: [latex]\dfrac{1}{2}, \dfrac{4}{5}[/latex]
- Find all the fractions that are not already in lowest terms and reduce them. Write “lowest terms” next to those already reduced.
- [latex]\dfrac{1}{2}[/latex]
- lowest terms
- [latex]\dfrac{2}{3}[/latex]
- lowest terms
- [latex]\dfrac{(3)}{(7)}[/latex]
- [latex]\dfrac{21}{40}[/latex]
- [latex]\dfrac{1}{6}[/latex]
- [latex]\dfrac{3}{5}[/latex]
- State if each pair of fractions is equivalent (=) or not equivalent (≠).
- ≠
- =
- =
- ≠
- =
- Round to the nearest whole number.
- 1
- 5
- 7
- 3
- 13