Add 14/8 and 21/54
1st number: 1 6/8, 2nd number: 21/54
14/8 + 21/54 is 77/36.
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,
14/8 = 14 × 27/8 × 27 = 378/216 - Likewise, for the 2nd fraction, since 54 × 4 = 216,
21/54 = 21 × 4/54 × 4 = 84/216 - Add the two like fractions:
378/216 + 84/216 = 378 + 84/216 = 462/216 - 462/216 simplified gives 77/36
- So, 14/8 + 21/54 = 77/36
In mixed form: 25/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/8+21/54 14/8+42/54 14/16+21/54 42/8+21/54 14/8+63/54 14/24+21/54 70/8+21/54 14/40+21/54 98/8+21/54 14/56+21/54