Add 28/27 and 42/8
1st number: 1 1/27, 2nd number: 5 2/8
28/27 + 42/8 is 679/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 8 is 216
Next, find the equivalent fraction of both fractional numbers with denominator 216 - For the 1st fraction, since 27 × 8 = 216,
28/27 = 28 × 8/27 × 8 = 224/216 - Likewise, for the 2nd fraction, since 8 × 27 = 216,
42/8 = 42 × 27/8 × 27 = 1134/216 - Add the two like fractions:
224/216 + 1134/216 = 224 + 1134/216 = 1358/216 - 1358/216 simplified gives 679/108
- So, 28/27 + 42/8 = 679/108
In mixed form: 631/108
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/27+42/8 28/27+84/8 28/54+42/8 28/27+42/16 84/27+42/8 28/81+42/8 28/27+42/24 28/27+42/40 28/27+42/56