Subtract 2/84 from 42/18
1st number: 2 6/18, 2nd number: 2/84
42/18 - 2/84 is 97/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
42/18 = 42 × 14/18 × 14 = 588/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
2/84 = 2 × 3/84 × 3 = 6/252 - Subtract the two like fractions:
588/252 - 6/252 = 588 - 6/252 = 582/252 - After reducing the fraction, the answer is 97/42
- In mixed form: 213/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-2/84 42/18-4/84 42/36-2/84 42/18-6/84 42/54-2/84 42/18-10/84 42/90-2/84 42/18-14/84