Subtract 15/36 from 1/30
1/30 - 15/36 is -23/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 30 × 6 = 180,
1/30 = 1 × 6/30 × 6 = 6/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
15/36 = 15 × 5/36 × 5 = 75/180 - Subtract the two like fractions:
6/180 - 75/180 = 6 - 75/180 = -69/180 - After reducing the fraction, the answer is -23/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/30-15/36 1/30-30/36 1/60-15/36 1/30-15/72 3/30-15/36 1/30-45/36 1/90-15/36 5/30-15/36 1/30-75/36 7/30-15/36