Subtract 5/8 from 63/90
63/90 - 5/8 is 3/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 8 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 90 × 4 = 360,
63/90 = 63 × 4/90 × 4 = 252/360 - Likewise, for the 2nd fraction, since 8 × 45 = 360,
5/8 = 5 × 45/8 × 45 = 225/360 - Subtract the two like fractions:
252/360 - 225/360 = 252 - 225/360 = 27/360 - After reducing the fraction, the answer is 3/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/90-10/8 63/90-5/16 63/90-15/8 63/90-5/24 63/90-25/8 63/90-5/40 63/90-35/8 63/90-5/56