Subtract 42/8 from 10/54
1st number: 10/54, 2nd number: 5 2/8
10/54 - 42/8 is -547/108.
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,
10/54 = 10 × 4/54 × 4 = 40/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
42/8 = 42 × 27/8 × 27 = 1134/216 - Subtract the two like fractions:
40/216 - 1134/216 = 40 - 1134/216 = -1094/216 - After reducing the fraction, the answer is -547/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/54-42/8 10/54-84/8 10/54-42/16 30/54-42/8 10/54-42/24 50/54-42/8 10/54-42/40 70/54-42/8 10/54-42/56