Add 45/28 and 24/15
1st number: 1 17/28, 2nd number: 1 9/15
45/28 + 24/15 is 449/140.
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,
45/28 = 45 × 15/28 × 15 = 675/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
24/15 = 24 × 28/15 × 28 = 672/420 - Add the two like fractions:
675/420 + 672/420 = 675 + 672/420 = 1347/420 - 1347/420 simplified gives 449/140
- So, 45/28 + 24/15 = 449/140
In mixed form: 329/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+24/15 45/28+48/15 45/56+24/15 45/28+24/30 45/28+72/15 45/84+24/15 45/28+24/45 45/28+24/75