Subtract 49/8 from 28/54
1st number: 28/54, 2nd number: 6 1/8
28/54 - 49/8 is -1211/216.
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,
28/54 = 28 × 4/54 × 4 = 112/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
49/8 = 49 × 27/8 × 27 = 1323/216 - Subtract the two like fractions:
112/216 - 1323/216 = 112 - 1323/216 = -1211/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/54-49/8 28/54-98/8 28/54-49/16 84/54-49/8 28/54-49/24 28/54-49/40 28/54-49/56