Subtract 63/8 from 90/10
1st number: 9 0/10, 2nd number: 7 7/8
90/10 - 63/8 is 9/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 8 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 10 × 4 = 40,
90/10 = 90 × 4/10 × 4 = 360/40 - Likewise, for the 2nd fraction, since 8 × 5 = 40,
63/8 = 63 × 5/8 × 5 = 315/40 - Subtract the two like fractions:
360/40 - 315/40 = 360 - 315/40 = 45/40 - After reducing the fraction, the answer is 9/8
- In mixed form: 11/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-63/8 90/10-63/16 90/30-63/8 90/10-63/24 90/50-63/8 90/10-63/40 90/70-63/8 90/10-63/56