Subtract 5/4 from 3/84
1st number: 3/84, 2nd number: 1 1/4
3/84 - 5/4 is -17/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 4 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
3/84 = 3 × 1/84 × 1 = 3/84 - Likewise, for the 2nd fraction, since 4 × 21 = 84,
5/4 = 5 × 21/4 × 21 = 105/84 - Subtract the two like fractions:
3/84 - 105/84 = 3 - 105/84 = -102/84 - After reducing the fraction, the answer is -17/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/84-5/4 3/84-10/4 3/84-5/8 9/84-5/4 3/84-15/4 3/84-5/12 15/84-5/4 3/84-25/4 3/84-5/20 21/84-5/4 3/84-35/4 3/84-5/28