Add 49/28 and 27/15
1st number: 1 21/28, 2nd number: 1 12/15
49/28 + 27/15 is 71/20.
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,
49/28 = 49 × 15/28 × 15 = 735/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
27/15 = 27 × 28/15 × 28 = 756/420 - Add the two like fractions:
735/420 + 756/420 = 735 + 756/420 = 1491/420 - 1491/420 simplified gives 71/20
- So, 49/28 + 27/15 = 71/20
In mixed form: 311/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28+27/15 49/28+54/15 49/56+27/15 49/28+27/30 49/28+81/15 49/84+27/15 49/28+27/45 49/28+27/75