Subtract 9/15 from 3/16
3/16 - 9/15 is -33/80.
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,
3/16 = 3 × 15/16 × 15 = 45/240 - Likewise, for the 2nd fraction, since 15 × 16 = 240,
9/15 = 9 × 16/15 × 16 = 144/240 - Subtract the two like fractions:
45/240 - 144/240 = 45 - 144/240 = -99/240 - After reducing the fraction, the answer is -33/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/16-9/15 3/16-18/15 3/32-9/15 3/16-9/30 9/16-9/15 3/16-27/15 3/48-9/15 3/16-9/45 15/16-9/15 3/16-45/15 3/80-9/15 3/16-9/75 21/16-9/15 3/16-63/15