Subtract 35/18 from 28/84
1st number: 28/84, 2nd number: 1 17/18
28/84 - 35/18 is -29/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
28/84 = 28 × 3/84 × 3 = 84/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
35/18 = 35 × 14/18 × 14 = 490/252 - Subtract the two like fractions:
84/252 - 490/252 = 84 - 490/252 = -406/252 - After reducing the fraction, the answer is -29/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/84-35/18 28/84-70/18 28/84-35/36 28/84-35/54 28/84-35/90