Add 18/28 and 49/15
1st number: 18/28, 2nd number: 3 4/15
18/28 + 49/15 is 821/210.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 15 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 28 × 15 = 420,
18/28 = 18 × 15/28 × 15 = 270/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
49/15 = 49 × 28/15 × 28 = 1372/420 - Add the two like fractions:
270/420 + 1372/420 = 270 + 1372/420 = 1642/420 - 1642/420 simplified gives 821/210
- So, 18/28 + 49/15 = 821/210
In mixed form: 3191/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28+49/15 18/28+98/15 18/56+49/15 18/28+49/30 54/28+49/15 18/84+49/15 18/28+49/45 90/28+49/15 18/28+49/75