Subtract 20/25 from 1/30
1/30 - 20/25 is -23/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 25 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 30 × 5 = 150,
1/30 = 1 × 5/30 × 5 = 5/150 - Likewise, for the 2nd fraction, since 25 × 6 = 150,
20/25 = 20 × 6/25 × 6 = 120/150 - Subtract the two like fractions:
5/150 - 120/150 = 5 - 120/150 = -115/150 - After reducing the fraction, the answer is -23/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/30-20/25 1/30-40/25 1/60-20/25 1/30-20/50 3/30-20/25 1/30-60/25 1/90-20/25 1/30-20/75 5/30-20/25 7/30-20/25