Subtract 14/10 from 30/84
1st number: 30/84, 2nd number: 1 4/10
30/84 - 14/10 is -73/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 10 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420 - Likewise, for the 2nd fraction, since 10 × 42 = 420,
14/10 = 14 × 42/10 × 42 = 588/420 - Subtract the two like fractions:
150/420 - 588/420 = 150 - 588/420 = -438/420 - After reducing the fraction, the answer is -73/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84-14/10 30/84-28/10 30/84-14/20 90/84-14/10 30/84-42/10 30/84-14/30 30/84-70/10 30/84-14/50 30/84-98/10 30/84-14/70