Subtract 30/63 from 5/54
5/54 - 30/63 is -145/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 63 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 54 × 7 = 378,
5/54 = 5 × 7/54 × 7 = 35/378 - Likewise, for the 2nd fraction, since 63 × 6 = 378,
30/63 = 30 × 6/63 × 6 = 180/378 - Subtract the two like fractions:
35/378 - 180/378 = 35 - 180/378 = -145/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/54-30/63 5/54-60/63 15/54-30/63 5/54-90/63 25/54-30/63 35/54-30/63