Subtract 14/20 from 20/30
20/30 - 14/20 is -1/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
20/30 = 20 × 2/30 × 2 = 40/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
14/20 = 14 × 3/20 × 3 = 42/60 - Subtract the two like fractions:
40/60 - 42/60 = 40 - 42/60 = -2/60 - After reducing the fraction, the answer is -1/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/30-14/20 20/30-28/20 20/60-14/20 20/30-14/40 60/30-14/20 20/30-42/20 20/90-14/20 20/30-14/60 20/30-70/20 20/30-98/20