Subtract 4/84 from 7/4
1st number: 1 3/4, 2nd number: 4/84
7/4 - 4/84 is 143/84.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 4 × 21 = 84,
7/4 = 7 × 21/4 × 21 = 147/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
4/84 = 4 × 1/84 × 1 = 4/84 - Subtract the two like fractions:
147/84 - 4/84 = 147 - 4/84 = 143/84 - In mixed form: 159/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4-4/84 7/4-8/84 7/8-4/84 21/4-4/84 7/4-12/84 7/12-4/84 35/4-4/84 7/4-20/84 7/20-4/84 49/4-4/84 7/4-28/84 7/28-4/84