Self-Test C-1.1.2: Add, Subtract, Multiply and Divide Whole Numbers, Fractions, Decimals and Percentages

Complete Self-Test C-1.1.2 and check your answers.

  1. Reduce the following fractions to their lowest terms:

a. [latex]\frac{18}{20}[/latex] =                   g. [latex]\frac{14}{18}[/latex] =                  

b. [latex]\frac{3}{30}[/latex] =                    h. [latex]\frac{8}{36}[/latex] =                 

c. [latex]\frac{14}{24}[/latex] =                    i. [latex]\frac{20}{24}[/latex] =                 

d. [latex]\frac{4}{40}[/latex] =                     j. [latex]\frac{4}{28}[/latex] =                 

e. [latex]\frac{44}{48}[/latex] =                   k. [latex]\frac{25}{60}[/latex] =                 

f. [latex]\frac{4}{32}[/latex] =                 

  1. A circle contains 360 degrees. What part of a circle is:

a. 90 degrees =                     d. 120 degrees =                 

b. 240 degrees =                   e. 180 degrees =                 

c. 60 degrees =                 

  1. How many eighths of an inch are there in the following mixed numbers?

a. [latex]1\frac{3}{8} \text{ in.}[/latex] =                    d. [latex]5\frac{5}{8} \text{ in.}[/latex] =                 

b. [latex]2\frac{1}{2} \text{ in.}[/latex] =                    e. [latex]12\frac{3}{8} \text{ in.}[/latex] =                 

c. [latex]3\frac{3}{8} \text{ in.}[/latex] =                    f. [latex]20\frac{7}{8} \text{ in.}[/latex] =                 

  1. Change the following mixed numbers to improper fractions:

a. [latex]4\frac{3}{4}[/latex] =                    e. [latex]7\frac{3}{4}[/latex] =                 

b. [latex]3\frac{2}{3}[/latex] =                    f. [latex]9\frac{1}{2}[/latex] =                 

c. [latex]5\frac{1}{8}[/latex] =                     g. [latex]3\frac{2}{5}[/latex] =                 

d. [latex]2\frac{7}{10}[/latex] =                   h. [latex]3\frac{3}{8}[/latex] =                 

  1. Change the following improper fractions to mixed numbers:

a. [latex]\frac{25}{3}[/latex] =                    g. [latex]\frac{11}{9}[/latex] =                 

b. [latex]\frac{17}{6}[/latex] =                     h. [latex]\frac{26}{3}[/latex] =                 

c. [latex]\frac{27}{5}[/latex] =                     i. [latex]\frac{19}{2}[/latex] =                 

d. [latex]\frac{9}{2}[/latex] =                       j. [latex]\frac{26}{8}[/latex] =                 

e. [latex]\frac{30}{4}[/latex] =                     k. [latex]\frac{40}{7}[/latex] =                 

f. [latex]\frac{15}{12}[/latex] =                      l. [latex]\frac{12}{5}[/latex] =                 

 

Answer Key: Self-Test C-1.1.2 is on the other page.

License

Icon for the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

Block C: Routine Trade Activities and Electrical Concepts Copyright © 2026 by Skilled Trades BC, TRU Open Press is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

Share This Book