Add 54/28 and 25/30
1st number: 1 26/28, 2nd number: 25/30
54/28 + 25/30 is 58/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 30 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 30 × 14 = 420,
25/30 = 25 × 14/30 × 14 = 350/420 - Add the two like fractions:
810/420 + 350/420 = 810 + 350/420 = 1160/420 - 1160/420 simplified gives 58/21
- So, 54/28 + 25/30 = 58/21
In mixed form: 216/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28+50/30 54/56+25/30 54/28+25/60 54/28+75/30 54/84+25/30 54/28+25/90