Subtract 9/84 from 4/5
4/5 - 9/84 is 97/140.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 5 × 84 = 420,
4/5 = 4 × 84/5 × 84 = 336/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
9/84 = 9 × 5/84 × 5 = 45/420 - Subtract the two like fractions:
336/420 - 45/420 = 336 - 45/420 = 291/420 - After reducing the fraction, the answer is 97/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/5-9/84 4/5-18/84 4/10-9/84 12/5-9/84 4/5-27/84 4/15-9/84 20/5-9/84 4/5-45/84 4/25-9/84 28/5-9/84 4/5-63/84 4/35-9/84