Subtract 84/18 from 7/4
1st number: 1 3/4, 2nd number: 4 12/18
7/4 - 84/18 is -35/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
7/4 = 7 × 9/4 × 9 = 63/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
84/18 = 84 × 2/18 × 2 = 168/36 - Subtract the two like fractions:
63/36 - 168/36 = 63 - 168/36 = -105/36 - After reducing the fraction, the answer is -35/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/4-84/18 7/8-84/18 7/4-84/36 21/4-84/18 7/12-84/18 7/4-84/54 35/4-84/18 7/20-84/18 7/4-84/90 49/4-84/18 7/28-84/18