Subtract 20/80 from 60/54
1st number: 1 6/54, 2nd number: 20/80
60/54 - 20/80 is 31/36.
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,
60/54 = 60 × 40/54 × 40 = 2400/2160 - Likewise, for the 2nd fraction, since 80 × 27 = 2160,
20/80 = 20 × 27/80 × 27 = 540/2160 - Subtract the two like fractions:
2400/2160 - 540/2160 = 2400 - 540/2160 = 1860/2160 - After reducing the fraction, the answer is 31/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/54-40/80 60/54-60/80