A subtracting fractions game to challenge yourself and to see how fast you can subtract two fractions in 2 minutes. This game offers unlimited practice and it is free!
You should use any means necessay to get the answer, such as mental math, paper and pencils.
However, I strongly recommend that you do not use a calculator!
How to play:
Same denominators
For instance, if the question is 1/2 − 4/2, do (1 − 4)/2 = -3/2 and enter -3/2
Different denominators, but one denominator is a divisor of the second denominator
For instance, if the question is 2/4 - 3/8, 4 is a divisor of 8 because 4 × 2 = 8
So, do (2 × 2)/(4 × 2) − 3/8 = 4/8 − 3/8 = 1/8 and enter 1/8
If the question is 3/10 + 4/5, 5 is a divisor of 10 because 5 × 2 = 10
So, do 3/10 − (4 × 2)/(5 × 2) = 3/10 − 8/10 = -5/10 and enter -5/10
Different denominators, but no denominator is a divisor of the second denominator
If the question is 3/2 − 1/5, 2 is not a divisor of 5 and 5 is not a divisor of 2.
So, do (3 × 5)/(2 × 5) − (1 × 2)/(5 × 2) = 15/10 − 2/10 = 13/10 and enter 13/10
Remember, do not simplify answers and the answer for the numerator can be negative!
Having problems adding and subtracting integers, study Integers
Do not forget the "/" (slash)
Enjoy this subtracting fractions game!
Here is my guideline to verify how well you are doing:
Easy and 1-3 points in 2 minutes: Very well, keep up!
Easy and 4-6 points in 2 minutes: good!
Easy and more than 6 points in 2 minutes: Expert!
Moderate and 1-2 points in 2 minutes: Very well, keep up!
Moderate and 3-5 points in 2 minutes: Good!
Moderate and more than 5 points in 2 minutes: Expert!
Difficult and 1-2 points in 2 minutes seconds: Very well, keep up!
Difficult and 3-4 points in 2 minutes: Good!
Difficult and more than 4 points in 2 minutes: Expert!
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