Add 21/8 and 49/54
1st number: 2 5/8, 2nd number: 49/54
21/8 + 49/54 is 763/216.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 54 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 8 × 27 = 216,
21/8 = 21 × 27/8 × 27 = 567/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
49/54 = 49 × 4/54 × 4 = 196/216 - Add the two like fractions:
567/216 + 196/216 = 567 + 196/216 = 763/216 - So, 21/8 + 49/54 = 763/216
In mixed form: 3115/216
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/8+49/54 21/8+98/54 21/16+49/54 63/8+49/54 21/24+49/54 21/40+49/54 21/56+49/54