Subtract 8/9 from 54/7
1st number: 7 5/7, 2nd number: 8/9
54/7 - 8/9 is 430/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 9 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 7 × 9 = 63,
54/7 = 54 × 9/7 × 9 = 486/63 - Likewise, for the 2nd fraction, since 9 × 7 = 63,
8/9 = 8 × 7/9 × 7 = 56/63 - Subtract the two like fractions:
486/63 - 56/63 = 486 - 56/63 = 430/63 - In mixed form: 652/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7-16/9 54/14-8/9 54/7-8/18 54/7-24/9 54/21-8/9 54/7-8/27 54/7-40/9 54/35-8/9 54/7-8/45 54/7-56/9 54/49-8/9 54/7-8/63