Subtract 5/8 from 30/54
30/54 - 5/8 is -5/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 54 × 4 = 216,
30/54 = 30 × 4/54 × 4 = 120/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
5/8 = 5 × 27/8 × 27 = 135/216 - Subtract the two like fractions:
120/216 - 135/216 = 120 - 135/216 = -15/216 - After reducing the fraction, the answer is -5/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/54-5/8 30/54-10/8 30/54-5/16 90/54-5/8 30/54-15/8 30/54-5/24 30/54-25/8 30/54-5/40 30/54-35/8 30/54-5/56