Add 84/90 and 6/15
84/90 + 6/15 is 4/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 15 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
84/90 = 84 × 1/90 × 1 = 84/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
6/15 = 6 × 6/15 × 6 = 36/90 - Add the two like fractions:
84/90 + 36/90 = 84 + 36/90 = 120/90 - 120/90 simplified gives 4/3
- So, 84/90 + 6/15 = 4/3
In mixed form: 11/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/90+12/15 84/90+6/30 84/90+18/15 84/90+6/45 84/90+30/15 84/90+6/75 84/90+42/15