Subtract 30/12 from 12/5
1st number: 2 2/5, 2nd number: 2 6/12
12/5 - 30/12 is -1/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 5 × 12 = 60,
12/5 = 12 × 12/5 × 12 = 144/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
30/12 = 30 × 5/12 × 5 = 150/60 - Subtract the two like fractions:
144/60 - 150/60 = 144 - 150/60 = -6/60 - After reducing the fraction, the answer is -1/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5-30/12 12/5-60/12 12/10-30/12 12/5-30/24 36/5-30/12 12/5-90/12 12/15-30/12 12/5-30/36 60/5-30/12 12/25-30/12 12/5-30/60 84/5-30/12 12/35-30/12 12/5-30/84