Add 45/15 and 84/28
1st number: 3 0/15, 2nd number: 3 0/28
45/15 + 84/28 is 6/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 15 × 28 = 420,
45/15 = 45 × 28/15 × 28 = 1260/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
84/28 = 84 × 15/28 × 15 = 1260/420 - Add the two like fractions:
1260/420 + 1260/420 = 1260 + 1260/420 = 2520/420 - 2520/420 simplified gives 6/1
- So, 45/15 + 84/28 = 6/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/15+84/28 45/30+84/28 45/15+84/56 45/75+84/28