Subtract 16/84 from 9/15
9/15 - 16/84 is 43/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
9/15 = 9 × 28/15 × 28 = 252/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
16/84 = 16 × 5/84 × 5 = 80/420 - Subtract the two like fractions:
252/420 - 80/420 = 252 - 80/420 = 172/420 - After reducing the fraction, the answer is 43/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/15-16/84 9/15-32/84 9/30-16/84 27/15-16/84 9/15-48/84 9/45-16/84 45/15-16/84 9/15-80/84 9/75-16/84 63/15-16/84