Subtract 7/18 from 63/5
1st number: 12 3/5, 2nd number: 7/18
63/5 - 7/18 is 1099/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
63/5 = 63 × 18/5 × 18 = 1134/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
7/18 = 7 × 5/18 × 5 = 35/90 - Subtract the two like fractions:
1134/90 - 35/90 = 1134 - 35/90 = 1099/90 - In mixed form: 1219/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/5-14/18 63/10-7/18 63/5-7/36 63/5-21/18 63/15-7/18 63/5-7/54 63/5-35/18 63/25-7/18 63/5-7/90 63/5-49/18 63/35-7/18