Add 24/15 and 54/28
1st number: 1 9/15, 2nd number: 1 26/28
24/15 + 54/28 is 247/70.
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,
24/15 = 24 × 28/15 × 28 = 672/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
54/28 = 54 × 15/28 × 15 = 810/420 - Add the two like fractions:
672/420 + 810/420 = 672 + 810/420 = 1482/420 - 1482/420 simplified gives 247/70
- So, 24/15 + 54/28 = 247/70
In mixed form: 337/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/15+54/28 24/30+54/28 24/15+54/56 72/15+54/28 24/45+54/28 24/15+54/84 24/75+54/28