Subtract 20/90 from 60/54
1st number: 1 6/54, 2nd number: 20/90
60/54 - 20/90 is 8/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 90 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
60/54 = 60 × 5/54 × 5 = 300/270 - Likewise, for the 2nd fraction, since 90 × 3 = 270,
20/90 = 20 × 3/90 × 3 = 60/270 - Subtract the two like fractions:
300/270 - 60/270 = 300 - 60/270 = 240/270 - After reducing the fraction, the answer is 8/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/54-40/90 60/54-60/90