Subtract 28/45 from 12/3
1st number: 4 0/3, 2nd number: 28/45
12/3 - 28/45 is 152/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 45 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 3 × 15 = 45,
12/3 = 12 × 15/3 × 15 = 180/45 - Likewise, for the 2nd fraction, since 45 × 1 = 45,
28/45 = 28 × 1/45 × 1 = 28/45 - Subtract the two like fractions:
180/45 - 28/45 = 180 - 28/45 = 152/45 - In mixed form: 317/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/3-28/45 12/3-56/45 12/6-28/45 12/3-28/90 36/3-28/45 12/3-84/45 12/9-28/45 60/3-28/45 12/15-28/45 84/3-28/45 12/21-28/45