Subtract 81/28 from 63/3
1st number: 21 0/3, 2nd number: 2 25/28
63/3 - 81/28 is 507/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 28 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 3 × 28 = 84,
63/3 = 63 × 28/3 × 28 = 1764/84 - Likewise, for the 2nd fraction, since 28 × 3 = 84,
81/28 = 81 × 3/28 × 3 = 243/84 - Subtract the two like fractions:
1764/84 - 243/84 = 1764 - 243/84 = 1521/84 - After reducing the fraction, the answer is 507/28
- In mixed form: 183/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/6-81/28 63/3-81/56 63/9-81/28 63/3-81/84 63/15-81/28 63/21-81/28