Subtract 30/12 from 12/16
1st number: 12/16, 2nd number: 2 6/12
12/16 - 30/12 is -7/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 12 is 48
Next, find the equivalent fraction of both fractional numbers with denominator 48 - For the 1st fraction, since 16 × 3 = 48,
12/16 = 12 × 3/16 × 3 = 36/48 - Likewise, for the 2nd fraction, since 12 × 4 = 48,
30/12 = 30 × 4/12 × 4 = 120/48 - Subtract the two like fractions:
36/48 - 120/48 = 36 - 120/48 = -84/48 - After reducing the fraction, the answer is -7/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/16-30/12 12/16-60/12 12/32-30/12 12/16-30/24 36/16-30/12 12/16-90/12 12/48-30/12 12/16-30/36 60/16-30/12 12/80-30/12 12/16-30/60 84/16-30/12 12/16-30/84