Add 54/60 and 90/28
1st number: 54/60, 2nd number: 3 6/28
54/60 + 90/28 is 144/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 28 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 60 × 7 = 420,
54/60 = 54 × 7/60 × 7 = 378/420 - Likewise, for the 2nd fraction, since 28 × 15 = 420,
90/28 = 90 × 15/28 × 15 = 1350/420 - Add the two like fractions:
378/420 + 1350/420 = 378 + 1350/420 = 1728/420 - 1728/420 simplified gives 144/35
- So, 54/60 + 90/28 = 144/35
In mixed form: 44/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/60+90/56 54/60+90/84