Subtract 20/15 from 63/16
1st number: 3 15/16, 2nd number: 1 5/15
63/16 - 20/15 is 125/48.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 15 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 16 × 15 = 240,
63/16 = 63 × 15/16 × 15 = 945/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
20/15 = 20 × 16/15 × 16 = 320/240 - Subtract the two like fractions:
945/240 - 320/240 = 945 - 320/240 = 625/240 - After reducing the fraction, the answer is 125/48
- In mixed form: 229/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/16-40/15 63/32-20/15 63/16-20/30 63/16-60/15 63/48-20/15 63/16-20/45 63/80-20/15 63/16-20/75