Subtract 9/15 from 4/30
4/30 - 9/15 is -7/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 30 × 1 = 30,
4/30 = 4 × 1/30 × 1 = 4/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
9/15 = 9 × 2/15 × 2 = 18/30 - Subtract the two like fractions:
4/30 - 18/30 = 4 - 18/30 = -14/30 - 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: 8/30-9/15 4/30-18/15 4/60-9/15 4/30-9/30 12/30-9/15 4/30-27/15 4/90-9/15 4/30-9/45 20/30-9/15 4/30-45/15 4/30-9/75 28/30-9/15 4/30-63/15