Subtract 1/30 from 7/12
7/12 - 1/30 is 11/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
7/12 = 7 × 5/12 × 5 = 35/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
1/30 = 1 × 2/30 × 2 = 2/60 - Subtract the two like fractions:
35/60 - 2/60 = 35 - 2/60 = 33/60 - After reducing the fraction, the answer is 11/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12-1/30 7/12-2/30 7/24-1/30 7/12-1/60 21/12-1/30 7/12-3/30 7/36-1/30 7/12-1/90 35/12-1/30 7/12-5/30 7/60-1/30 49/12-1/30 7/12-7/30 7/84-1/30