Add 21/18 and 4/54
1st number: 1 3/18, 2nd number: 4/54
21/18 + 4/54 is 67/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 54 is 54
Next, find the equivalent fraction of both fractional numbers with denominator 54 - For the 1st fraction, since 18 × 3 = 54,
21/18 = 21 × 3/18 × 3 = 63/54 - Likewise, for the 2nd fraction, since 54 × 1 = 54,
4/54 = 4 × 1/54 × 1 = 4/54 - Add the two like fractions:
63/54 + 4/54 = 63 + 4/54 = 67/54 - So, 21/18 + 4/54 = 67/54
In mixed form: 113/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/18+4/54 21/18+8/54 21/36+4/54 63/18+4/54 21/18+12/54 21/54+4/54 21/18+20/54 21/90+4/54 21/18+28/54