Add 63/28 and 24/15
1st number: 2 7/28, 2nd number: 1 9/15
63/28 + 24/15 is 77/20.
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,
63/28 = 63 × 15/28 × 15 = 945/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
24/15 = 24 × 28/15 × 28 = 672/420 - Add the two like fractions:
945/420 + 672/420 = 945 + 672/420 = 1617/420 - 1617/420 simplified gives 77/20
- So, 63/28 + 24/15 = 77/20
In mixed form: 317/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/28+48/15 63/56+24/15 63/28+24/30 63/28+72/15 63/84+24/15 63/28+24/45 63/28+24/75