Subtract 14/20 from 7/30
7/30 - 14/20 is -7/15.
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,
7/30 = 7 × 2/30 × 2 = 14/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
14/20 = 14 × 3/20 × 3 = 42/60 - Subtract the two like fractions:
14/60 - 42/60 = 14 - 42/60 = -28/60 - After reducing the fraction, the answer is -7/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-14/20 7/30-28/20 7/60-14/20 7/30-14/40 21/30-14/20 7/30-42/20 7/90-14/20 7/30-14/60 35/30-14/20 7/30-70/20 49/30-14/20 7/30-98/20