Subtract 50/30 from 6/84
1st number: 6/84, 2nd number: 1 20/30
6/84 - 50/30 is -67/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
6/84 = 6 × 5/84 × 5 = 30/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
50/30 = 50 × 14/30 × 14 = 700/420 - Subtract the two like fractions:
30/420 - 700/420 = 30 - 700/420 = -670/420 - After reducing the fraction, the answer is -67/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/84-50/30 6/84-50/60 18/84-50/30 6/84-50/90 30/84-50/30 42/84-50/30