Subtract 30/12 from 10/25
1st number: 10/25, 2nd number: 2 6/12
10/25 - 30/12 is -21/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 25 × 12 = 300,
10/25 = 10 × 12/25 × 12 = 120/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
30/12 = 30 × 25/12 × 25 = 750/300 - Subtract the two like fractions:
120/300 - 750/300 = 120 - 750/300 = -630/300 - After reducing the fraction, the answer is -21/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/25-30/12 10/25-60/12 10/50-30/12 10/25-30/24 30/25-30/12 10/25-90/12 10/75-30/12 10/25-30/36 50/25-30/12 10/25-30/60 70/25-30/12 10/25-30/84