Subtract 7/54 from 8/7
1st number: 1 1/7, 2nd number: 7/54
8/7 - 7/54 is 383/378.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
8/7 = 8 × 54/7 × 54 = 432/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
7/54 = 7 × 7/54 × 7 = 49/378 - Subtract the two like fractions:
432/378 - 49/378 = 432 - 49/378 = 383/378 - In mixed form: 15/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7-7/54 8/7-14/54 8/14-7/54 24/7-7/54 8/7-21/54 8/21-7/54 40/7-7/54 8/7-35/54 8/35-7/54 56/7-7/54 8/7-49/54 8/49-7/54