Subtract 28/63 from 45/3
1st number: 15 0/3, 2nd number: 28/63
45/3 - 28/63 is 131/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 3 × 21 = 63,
45/3 = 45 × 21/3 × 21 = 945/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
28/63 = 28 × 1/63 × 1 = 28/63 - Subtract the two like fractions:
945/63 - 28/63 = 945 - 28/63 = 917/63 - After reducing the fraction, the answer is 131/9
- In mixed form: 145/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3-28/63 45/3-56/63 45/6-28/63 45/3-84/63 45/9-28/63 45/15-28/63 45/21-28/63