Subtract 7/90 from 63/5
1st number: 12 3/5, 2nd number: 7/90
63/5 - 7/90 is 1127/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 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 90 × 1 = 90,
7/90 = 7 × 1/90 × 1 = 7/90 - Subtract the two like fractions:
1134/90 - 7/90 = 1134 - 7/90 = 1127/90 - In mixed form: 1247/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/5-14/90 63/10-7/90 63/5-21/90 63/15-7/90 63/5-35/90 63/25-7/90 63/5-49/90 63/35-7/90