Add 90/28 and 27/60
1st number: 3 6/28, 2nd number: 27/60
90/28 + 27/60 is 513/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 60 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 60 × 7 = 420,
27/60 = 27 × 7/60 × 7 = 189/420 - Add the two like fractions:
1350/420 + 189/420 = 1350 + 189/420 = 1539/420 - 1539/420 simplified gives 513/140
- So, 90/28 + 27/60 = 513/140
In mixed form: 393/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+54/60 90/56+27/60 90/28+81/60 90/84+27/60