Subtract 10/12 from 7/30
7/30 - 10/12 is -3/5.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
7/30 = 7 × 2/30 × 2 = 14/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
10/12 = 10 × 5/12 × 5 = 50/60 - Subtract the two like fractions:
14/60 - 50/60 = 14 - 50/60 = -36/60 - After reducing the fraction, the answer is -3/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30-10/12 7/30-20/12 7/60-10/12 7/30-10/24 21/30-10/12 7/30-30/12 7/90-10/12 7/30-10/36 35/30-10/12 7/30-50/12 7/30-10/60 49/30-10/12 7/30-70/12 7/30-10/84