Subtract 63/16 from 20/63
1st number: 20/63, 2nd number: 3 15/16
20/63 - 63/16 is -3649/1008.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 16 is 1008
Next, find the equivalent fraction of both fractional numbers with denominator 1008 - For the 1st fraction, since 63 × 16 = 1008,
20/63 = 20 × 16/63 × 16 = 320/1008 - Likewise, for the 2nd fraction, since 16 × 63 = 1008,
63/16 = 63 × 63/16 × 63 = 3969/1008 - Subtract the two like fractions:
320/1008 - 3969/1008 = 320 - 3969/1008 = -3649/1008
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/63-63/16 20/63-63/32 60/63-63/16 20/63-63/48 20/63-63/80