Add 90/28 and 27/30
1st number: 3 6/28, 2nd number: 27/30
90/28 + 27/30 is 144/35.
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,
90/28 = 90 × 15/28 × 15 = 1350/420 - Likewise, for the 2nd fraction, since 30 × 14 = 420,
27/30 = 27 × 14/30 × 14 = 378/420 - Add the two like fractions:
1350/420 + 378/420 = 1350 + 378/420 = 1728/420 - 1728/420 simplified gives 144/35
- So, 90/28 + 27/30 = 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: 90/28+54/30 90/56+27/30 90/28+27/60 90/28+81/30 90/84+27/30 90/28+27/90