Subtract 28/8 from 36/12
1st number: 3 0/12, 2nd number: 3 4/8
36/12 - 28/8 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
36/12 = 36 × 2/12 × 2 = 72/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
28/8 = 28 × 3/8 × 3 = 84/24 - Subtract the two like fractions:
72/24 - 84/24 = 72 - 84/24 = -12/24 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/12-28/8 36/12-56/8 36/24-28/8 36/12-28/16 36/12-84/8 36/12-28/24 36/60-28/8 36/12-28/40 36/84-28/8 36/12-28/56