Subtract 42/16 from 7/54
1st number: 7/54, 2nd number: 2 10/16
7/54 - 42/16 is -539/216.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 16 is 432
Next, find the equivalent fraction of both fractional numbers with denominator 432 - For the 1st fraction, since 54 × 8 = 432,
7/54 = 7 × 8/54 × 8 = 56/432 - Likewise, for the 2nd fraction, since 16 × 27 = 432,
42/16 = 42 × 27/16 × 27 = 1134/432 - Subtract the two like fractions:
56/432 - 1134/432 = 56 - 1134/432 = -1078/432 - After reducing the fraction, the answer is -539/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/54-42/16 7/54-84/16 7/54-42/32 21/54-42/16 7/54-42/48 35/54-42/16 7/54-42/80 49/54-42/16