Add 54/28 and 3/15
1st number: 1 26/28, 2nd number: 3/15
54/28 + 3/15 is 149/70.
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,
54/28 = 54 × 15/28 × 15 = 810/420 - Likewise, for the 2nd fraction, since 15 × 28 = 420,
3/15 = 3 × 28/15 × 28 = 84/420 - Add the two like fractions:
810/420 + 84/420 = 810 + 84/420 = 894/420 - 894/420 simplified gives 149/70
- So, 54/28 + 3/15 = 149/70
In mixed form: 29/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28+6/15 54/56+3/15 54/28+3/30 54/28+9/15 54/84+3/15 54/28+3/45 54/28+3/75 54/28+21/15