Decimal, Percent and Fractions Practice Questions

Basic Math Practice

Basic math questions similar to those found on most high school exit or proficiency exam, nurse entrance tests and armed services entrance tests.

Practice Questions

1. 8 is what percent of 40?

a. 10%
b. 15%
c. 20%
d. 25%

2. 9 is what percent of 36?

a. 10%
b. 15%
c. 20%
d. 25%

3. Three tenths of 90 equals:

a. 18
b. 45
c. 27
d. 36

4. .4% of 36 equals:

a. 1.44
b. .144
c. 14.4
d. 144

5. The ratio of 8:5 = (?)%

a. 75%
b. 150%
c. 175%
d. 160%

6. 3/5 = (?)% x 5/8

a. 75%
b. 100%
c. 78%
d. 96%

7. Express 2/5 as a decimal.

a. .33
b. .3
c. .4
d. .5

 

8. Express .56 as percent.

a. 56%
b. .56%
c. 5.6%
d. .056%

9. Express 18/6 as a percentage.

a. 300%
b. 30%
c. 150%
d. 3%

10. Express 4/20 as a percentage.

a. 25%
b. 20%
c. 15%
d. 40%

11. 7.5/30% = ?

a. 30
b. 35
c. 25
d. 20

12. Express .061 as percent.

a. .61%
b. 6.1%
c. 61%
d. .061%

13. Express the ratio of 7:25 as percent.

a. 20%
b. 22%
c. 25%
d. 28%

14. Express 7/16 as percent.

a. 43.75%
b. 41.25%
c. 42.5%
d. 45%

Answer Key

1. C. Finding the percentage of one number and another.

2. D. Finding the percentage of one number and another.

3. C. Determining percent from a whole number.

4. B. Determining the fractional percentage of a number.

5. D. Determining the percentage of a ratio statement.
The ratio of 8:5 must be converted to percent, or x/100, so
8/5 = x/100 – 800 = 5x – x = 160

6. D. Percentage of a fraction and another fraction.
3/5 = x/100 * 5/8
3/5 = 5x/800
25x = 2400
x = 96

7. C. Converting common fraction to a decimal fraction.

8. A. Converting decimal fraction to a percentage.

9. A. Converting fraction to percent.

10. B. Converting fraction to percent.

11. C. Dividing a decimal fraction by a percentage.

12. B. Converting decimal fractions to percentages.

13. D. Converting a ratio to a percentage.
Convert the ration 7:25 to percent, or x/100 – so
7/25 = x/100 + 700 = 25x = x = 28%

14. A. Converting a common fraction to a percentage.

Written by: Brian Stocker MA, Complete Test Preparation Inc.

    13 Comments

  1. Brian
    July 31, 2017
    Reply

    .4% of 36 = .4/100 * 36 = (.4 *36)/100 = 14.4/100 = 0.144 The answer is correct

    • Lollipop girl
      August 11, 2017
      Reply

      Thank you I so had it wrong

      • SARAH
        November 21, 2018
        Reply

        THIS WAS SO EASY

    • MARK DENVER CLEMENTE
      December 18, 2017
      Reply

      4% of 36 is 1.44 the decimal point was placed incorectly in front of 4. 4%to decimal is 0.04 if the decimal point is placed in front of 4 then 4 means 40% or .4 in decimal.

      • Brian
        December 18, 2017
        Reply

        The question is .4% of 36

        • Bibiaa
          August 30, 2019
          Reply

          OOH!! I see the point now. that’s true you are correct sorry I don’t see the point before the 4

    • LookinGoodBillyRae
      March 1, 2018
      Reply

      Sooooo……….How would I Know to do the last step(14.4/100) to complete the problem?

      • Brian
        March 5, 2018
        Reply

        OK 14.4/100 – move decimal 2 places left – (dividing so the result will be smaller) = 0.144

    • ChanningTatum lookalike
      April 26, 2018
      Reply

      Thank you Brian for working that one out, it was very helpful.

    • bibiana
      August 30, 2019
      Reply

      excuse me but I think you have a mistake because you forget to put a zero in the decimal 0.04 and you have 0.4 when we convert a percent to a decimal we move two place to the left and you move only one.

  2. ten
    August 24, 2017
    Reply

    hi, can you please work out one of the ratio ones like #5 or #13

    • Kristin
      May 8, 2018
      Reply

      7:25= 7/25
      7/25=0.28
      0.28=28% Because from decimal to percent you move your decimal over two places to the right.

  3. July 6, 2018
    Reply

    I got perfect score, thanks for this practice Ilove Math ♥

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