Add 84/15 and 3/90
1st number: 5 9/15, 2nd number: 3/90
84/15 + 3/90 is 169/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 15 × 6 = 90,
84/15 = 84 × 6/15 × 6 = 504/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
3/90 = 3 × 1/90 × 1 = 3/90 - Add the two like fractions:
504/90 + 3/90 = 504 + 3/90 = 507/90 - 507/90 simplified gives 169/30
- So, 84/15 + 3/90 = 169/30
In mixed form: 519/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/15+6/90 84/30+3/90 84/15+9/90 84/45+3/90 84/15+15/90 84/75+3/90 84/15+21/90