Add 90/27 and 84/35
1st number: 3 9/27, 2nd number: 2 14/35
90/27 + 84/35 is 86/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 35 is 945
Next, find the equivalent fraction of both fractional numbers with denominator 945 - For the 1st fraction, since 27 × 35 = 945,
90/27 = 90 × 35/27 × 35 = 3150/945 - Likewise, for the 2nd fraction, since 35 × 27 = 945,
84/35 = 84 × 27/35 × 27 = 2268/945 - Add the two like fractions:
3150/945 + 2268/945 = 3150 + 2268/945 = 5418/945 - 5418/945 simplified gives 86/15
- So, 90/27 + 84/35 = 86/15
In mixed form: 511/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/54+84/35 90/27+84/70 90/81+84/35