Subtract 3/40 from 63/16
1st number: 3 15/16, 2nd number: 3/40
63/16 - 3/40 is 309/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
63/16 = 63 × 5/16 × 5 = 315/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
3/40 = 3 × 2/40 × 2 = 6/80 - Subtract the two like fractions:
315/80 - 6/80 = 315 - 6/80 = 309/80 - In mixed form: 369/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/16-6/40 63/32-3/40 63/16-3/80 63/16-9/40 63/48-3/40 63/16-15/40 63/80-3/40 63/16-21/40