Subtract 3/16 from 81/15
1st number: 5 6/15, 2nd number: 3/16
81/15 - 3/16 is 417/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 16 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
81/15 = 81 × 16/15 × 16 = 1296/240 - Likewise, for the 2nd fraction, since 16 × 15 = 240,
3/16 = 3 × 15/16 × 15 = 45/240 - Subtract the two like fractions:
1296/240 - 45/240 = 1296 - 45/240 = 1251/240 - After reducing the fraction, the answer is 417/80
- In mixed form: 517/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/15-6/16 81/30-3/16 81/15-3/32 81/15-9/16 81/45-3/16 81/15-3/48 81/15-15/16 81/75-3/16 81/15-3/80 81/15-21/16