Subtract 9/5 from 16/84
1st number: 16/84, 2nd number: 1 4/5
16/84 - 9/5 is -169/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 5 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
16/84 = 16 × 5/84 × 5 = 80/420 - Likewise, for the 2nd fraction, since 5 × 84 = 420,
9/5 = 9 × 84/5 × 84 = 756/420 - Subtract the two like fractions:
80/420 - 756/420 = 80 - 756/420 = -676/420 - After reducing the fraction, the answer is -169/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/84-9/5 16/84-18/5 16/84-9/10 48/84-9/5 16/84-27/5 16/84-9/15 80/84-9/5 16/84-45/5 16/84-9/25 16/84-63/5 16/84-9/35