Add 15/90 and 81/6
1st number: 15/90, 2nd number: 13 3/6
15/90 + 81/6 is 41/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
81/6 = 81 × 15/6 × 15 = 1215/90 - Add the two like fractions:
15/90 + 1215/90 = 15 + 1215/90 = 1230/90 - 1230/90 simplified gives 41/3
- So, 15/90 + 81/6 = 41/3
In mixed form: 132/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/90+81/6 15/90+81/12 45/90+81/6 15/90+81/18 75/90+81/6 15/90+81/30 15/90+81/42