Subtract 10/20 from 4/30
4/30 - 10/20 is -11/30.
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,
4/30 = 4 × 2/30 × 2 = 8/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
10/20 = 10 × 3/20 × 3 = 30/60 - Subtract the two like fractions:
8/60 - 30/60 = 8 - 30/60 = -22/60 - After reducing the fraction, the answer is -11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/30-10/20 4/60-10/20 4/30-10/40 12/30-10/20 4/30-30/20 4/90-10/20 4/30-10/60 20/30-10/20 4/30-50/20 28/30-10/20 4/30-70/20