Subtract 30/84 from 14/20
14/20 - 30/84 is 12/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 84 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 20 × 21 = 420,
14/20 = 14 × 21/20 × 21 = 294/420 - Likewise, for the 2nd fraction, since 84 × 5 = 420,
30/84 = 30 × 5/84 × 5 = 150/420 - Subtract the two like fractions:
294/420 - 150/420 = 294 - 150/420 = 144/420 - After reducing the fraction, the answer is 12/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/20-30/84 14/20-60/84 14/40-30/84 42/20-30/84 14/20-90/84 14/60-30/84 70/20-30/84 98/20-30/84