Subtract 27/24 from 20/80
1st number: 20/80, 2nd number: 1 3/24
20/80 - 27/24 is -7/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 24 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 80 × 3 = 240,
20/80 = 20 × 3/80 × 3 = 60/240 - Likewise, for the 2nd fraction, since 24 × 10 = 240,
27/24 = 27 × 10/24 × 10 = 270/240 - Subtract the two like fractions:
60/240 - 270/240 = 60 - 270/240 = -210/240 - After reducing the fraction, the answer is -7/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/80-27/24 20/80-54/24 20/80-27/48 60/80-27/24 20/80-81/24 20/80-27/72