Subtract 7/54 from 42/8
1st number: 5 2/8, 2nd number: 7/54
42/8 - 7/54 is 553/108.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
42/8 = 42 × 27/8 × 27 = 1134/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
7/54 = 7 × 4/54 × 4 = 28/216 - Subtract the two like fractions:
1134/216 - 28/216 = 1134 - 28/216 = 1106/216 - After reducing the fraction, the answer is 553/108
- In mixed form: 513/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8-7/54 42/8-14/54 42/16-7/54 42/8-21/54 42/24-7/54 42/8-35/54 42/40-7/54 42/8-49/54 42/56-7/54