Subtract 12/80 from 12/54
12/54 - 12/80 is 13/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 80 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 54 × 40 = 2160,
12/54 = 12 × 40/54 × 40 = 480/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
12/80 = 12 × 27/80 × 27 = 324/2160 - Subtract the two like fractions:
480/2160 - 324/2160 = 480 - 324/2160 = 156/2160 - After reducing the fraction, the answer is 13/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/54-12/80 12/54-24/80 36/54-12/80 12/54-36/80 60/54-12/80 12/54-60/80 84/54-12/80 12/54-84/80