Add 84/28 and 56/30
1st number: 3 0/28, 2nd number: 1 26/30
84/28 + 56/30 is 73/15.
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,
84/28 = 84 × 15/28 × 15 = 1260/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
56/30 = 56 × 14/30 × 14 = 784/420 - Add the two like fractions:
1260/420 + 784/420 = 1260 + 784/420 = 2044/420 - 2044/420 simplified gives 73/15
- So, 84/28 + 56/30 = 73/15
In mixed form: 413/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56+56/30 84/28+56/60 84/28+56/90