Add 90/28 and 28/60
1st number: 3 6/28, 2nd number: 28/60
90/28 + 28/60 is 773/210.
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,
28/60 = 28 × 7/60 × 7 = 196/420 - Add the two like fractions:
1350/420 + 196/420 = 1350 + 196/420 = 1546/420 - 1546/420 simplified gives 773/210
- So, 90/28 + 28/60 = 773/210
In mixed form: 3143/210
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/28+56/60 90/56+28/60 90/28+84/60 90/84+28/60