Add 64/28 and 28/30
1st number: 2 8/28, 2nd number: 28/30
64/28 + 28/30 is 338/105.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
64/28 = 64 × 15/28 × 15 = 960/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
28/30 = 28 × 14/30 × 14 = 392/420 - Add the two like fractions:
960/420 + 392/420 = 960 + 392/420 = 1352/420 - 1352/420 simplified gives 338/105
- So, 64/28 + 28/30 = 338/105
In mixed form: 323/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/28+56/30 64/56+28/30 64/28+28/60 64/28+84/30 64/84+28/30 64/28+28/90