Subtract 35/54 from 21/3
1st number: 7 0/3, 2nd number: 35/54
21/3 - 35/54 is 343/54.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 3 × 18 = 54,
21/3 = 21 × 18/3 × 18 = 378/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
35/54 = 35 × 1/54 × 1 = 35/54 - Subtract the two like fractions:
378/54 - 35/54 = 378 - 35/54 = 343/54 - In mixed form: 619/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3-35/54 21/3-70/54 21/6-35/54 63/3-35/54 21/9-35/54 21/15-35/54