Subtract 50/84 from 42/18
1st number: 2 6/18, 2nd number: 50/84
42/18 - 50/84 is 73/42.
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,
50/84 = 50 × 3/84 × 3 = 150/252 - Subtract the two like fractions:
588/252 - 150/252 = 588 - 150/252 = 438/252 - After reducing the fraction, the answer is 73/42
- In mixed form: 131/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18-50/84 42/36-50/84 42/54-50/84 42/90-50/84