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exercise 3 (answers on page 41) simplify the following fractions. reduc…

Question

exercise 3 (answers on page 41)
simplify the following fractions. reduce if possible.

  1. $\frac{6}{5}$=
  2. $\frac{5}{4}$=
  3. $\frac{7}{3}$=
  4. $\frac{10}{6}$=
  5. $\frac{4}{2}$=
  6. $\frac{6}{4}$=
  7. $\frac{15}{3}$=
  8. $\frac{20}{12}$=
  9. $\frac{19}{4}$=
  10. $\frac{23}{5}$=
  11. $\frac{18}{3}$=
  12. $\frac{17}{5}$=
  13. $\frac{37}{9}$=
  14. $\frac{28}{8}$=
  15. $\frac{47}{9}$=
  16. $\frac{106}{4}$=
  17. $\frac{17}{2}$=
  18. $\frac{140}{20}$=
  19. $\frac{162}{10}$=
  20. $\frac{38}{5}$=
  21. $\frac{52}{3}$=

Explanation:

Step1: Simplify or convert to mixed number

  1. $\frac{6}{5}$ is improper; divide 6 by 5: $6=5\times1+1$, so $1\frac{1}{5}$
  2. $\frac{5}{4}$ is improper; divide 5 by 4: $5=4\times1+1$, so $1\frac{1}{4}$
  3. $\frac{7}{3}$ is improper; divide 7 by 3: $7=3\times2+1$, so $2\frac{1}{3}$
  4. $\frac{10}{6}$: GCD of 10&6=2, $\frac{10\div2}{6\div2}=\frac{5}{3}=1\frac{2}{3}$
  5. $\frac{4}{2}$: 4÷2=2, so 2
  6. $\frac{6}{4}$: GCD of 6&4=2, $\frac{6\div2}{4\div2}=\frac{3}{2}=1\frac{1}{2}$
  7. $\frac{15}{3}$: 15÷3=5, so 5
  8. $\frac{20}{12}$: GCD of 20&12=4, $\frac{20\div4}{12\div4}=\frac{5}{3}=1\frac{2}{3}$
  9. $\frac{19}{4}$ is improper; divide 19 by 4: $19=4\times4+3$, so $4\frac{3}{4}$
  10. $\frac{23}{5}$ is improper; divide 23 by 5: $23=5\times4+3$, so $4\frac{3}{5}$
  11. $\frac{18}{3}$: 18÷3=6, so 6
  12. $\frac{17}{5}$ is improper; divide 17 by 5: $17=5\times3+2$, so $3\frac{2}{5}$
  13. $\frac{37}{9}$ is improper; divide 37 by 9: $37=9\times4+1$, so $4\frac{1}{9}$
  14. $\frac{28}{8}$: GCD of 28&8=4, $\frac{28\div4}{8\div4}=\frac{7}{2}=3\frac{1}{2}$
  15. $\frac{47}{9}$ is improper; divide 47 by 9: $47=9\times5+2$, so $5\frac{2}{9}$
  16. $\frac{106}{4}$: GCD of 106&4=2, $\frac{106\div2}{4\div2}=\frac{53}{2}=26\frac{1}{2}$
  17. $\frac{17}{2}$ is improper; divide 17 by 2: $17=2\times8+1$, so $8\frac{1}{2}$
  18. $\frac{140}{20}$: 140÷20=7, so 7
  19. $\frac{162}{10}$: GCD of 162&10=2, $\frac{162\div2}{10\div2}=\frac{81}{5}=16\frac{1}{5}$
  20. $\frac{38}{5}$ is improper; divide 38 by 5: $38=5\times7+3$, so $7\frac{3}{5}$
  21. $\frac{52}{3}$ is improper; divide 52 by 3: $52=3\times17+1$, so $17\frac{1}{3}$

Answer:

  1. $1\frac{1}{5}$
  2. $1\frac{1}{4}$
  3. $2\frac{1}{3}$
  4. $1\frac{2}{3}$
  5. $2$
  6. $1\frac{1}{2}$
  7. $5$
  8. $1\frac{2}{3}$
  9. $4\frac{3}{4}$
  10. $4\frac{3}{5}$
  11. $6$
  12. $3\frac{2}{5}$
  13. $4\frac{1}{9}$
  14. $3\frac{1}{2}$
  15. $5\frac{2}{9}$
  16. $26\frac{1}{2}$
  17. $8\frac{1}{2}$
  18. $7$
  19. $16\frac{1}{5}$
  20. $7\frac{3}{5}$
  21. $17\frac{1}{3}$