Subtract 3/54 from 30/45
30/45 - 3/54 is 11/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 45 × 6 = 270,
30/45 = 30 × 6/45 × 6 = 180/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
3/54 = 3 × 5/54 × 5 = 15/270 - Subtract the two like fractions:
180/270 - 15/270 = 180 - 15/270 = 165/270 - After reducing the fraction, the answer is 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45-3/54 30/45-6/54 30/90-3/54 90/45-3/54 30/45-9/54 30/45-15/54 30/45-21/54