Answers: Arithmetic on numerical fractions
These are the answers to Questions: Arithmetic on numerical fractions.
Please attempt the questions before reading these answers!
Q1
1.1. \(\displaystyle \quad \dfrac{1}{2}\)
1.2. \(\displaystyle \quad \dfrac{3}{7}\)
1.3. \(\displaystyle \quad -\dfrac{1}{5}\)
1.4. \(\displaystyle \quad \dfrac{1}{2}\)
1.5. \(\displaystyle \quad \dfrac{1}{4}\)
1.6. \(\displaystyle \quad \dfrac{1}{2}\)
1.7. \(\displaystyle \quad \dfrac{1}{2}\)
1.8. \(\displaystyle \quad \dfrac{4}{5}\)
1.9. \(\displaystyle \quad \dfrac{5}{6}\)
1.10. \(\displaystyle \quad \dfrac{7}{8}\)
1.11. \(\displaystyle \quad \dfrac{7}{20}\)
1.12. \(\displaystyle \quad \dfrac{1}{12}\)
1.13. \(\displaystyle \quad \dfrac{5}{6}\)
1.14. \(\displaystyle \quad -\dfrac{13}{20}\)
1.15. \(\displaystyle \quad \dfrac{25}{14}\)
Q2
2.1. \(\displaystyle \quad \dfrac{1}{12}\)
2.2. \(\displaystyle \quad \dfrac{6}{35}\)
2.3. \(\displaystyle \quad 6\)
2.4. \(\displaystyle \quad \dfrac{1}{6}\)
2.5. \(\displaystyle \quad \dfrac{3}{5}\)
2.6. \(\displaystyle \quad -\dfrac{3}{28}\)
2.7. \(\displaystyle \quad 4\)
2.8. \(\displaystyle \quad \dfrac{10}{3}\)
2.9. \(\displaystyle \quad -\dfrac{14}{15}\)
2.10. \(\displaystyle \quad -\dfrac{3}{4}\)
2.11. \(\displaystyle \quad \dfrac{2}{13}\)
2.12. \(\displaystyle \quad \dfrac{3}{8}\)
Q3
3.1. \(\displaystyle \quad 2\)
3.2. \(\displaystyle \quad \dfrac{8}{15}\)
3.3. \(\displaystyle \quad \dfrac{3}{16}\)
3.4. \(\displaystyle \quad \dfrac{1}{6}\)
3.5. \(\displaystyle \quad 20\)
3.6. \(\displaystyle \quad \dfrac{3}{2}\)
3.7. \(\displaystyle \quad -\dfrac{5}{6}\)
3.8. \(\displaystyle \quad \dfrac{2}{11}\)
3.9. \(\displaystyle \quad -\dfrac{3}{4}\)
3.10. \(\displaystyle \quad -\dfrac{4}{3}\)
3.11. \(\displaystyle \quad \dfrac{3}{8}\)
3.12. \(\displaystyle \quad \dfrac{1}{14}\)
Q4
4.1. \(\displaystyle \quad \dfrac{7}{2}\)
4.2. \(\displaystyle \quad \dfrac{9}{4}\)
4.3. \(\displaystyle \quad 3\)
4.4. \(\displaystyle \quad 4\)
4.5. \(\displaystyle \quad \dfrac{49}{12}\)
4.6. \(\displaystyle \quad \dfrac{19}{8}\)
4.7. \(\displaystyle \quad -\dfrac{3}{5}\)
4.8. \(\displaystyle \quad -2\)
4.9. \(\displaystyle \quad -\dfrac{59}{15}\)
4.10. \(\displaystyle \quad 4\)
4.11. \(\displaystyle \quad 2\)
4.12. \(\displaystyle \quad \dfrac{89}{18}\)
Version history and licensing
v1.0: initial version created 12/25 by Donald Campbell as part of a University of St Andrews VIP project.