Subtract 28/18 from 63/8
1st number: 7 7/8, 2nd number: 1 10/18
63/8 - 28/18 is 455/72.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 18 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 8 × 9 = 72,
63/8 = 63 × 9/8 × 9 = 567/72 - Likewise, for the 2nd fraction, since 18 × 4 = 72,
28/18 = 28 × 4/18 × 4 = 112/72 - Subtract the two like fractions:
567/72 - 112/72 = 567 - 112/72 = 455/72 - In mixed form: 623/72
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/8-56/18 63/16-28/18 63/8-28/36 63/8-84/18 63/24-28/18 63/8-28/54 63/40-28/18 63/8-28/90 63/56-28/18