Add 16/18 and 15/90
16/18 + 15/90 is 19/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
16/18 = 16 × 5/18 × 5 = 80/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Add the two like fractions:
80/90 + 15/90 = 80 + 15/90 = 95/90 - 95/90 simplified gives 19/18
- So, 16/18 + 15/90 = 19/18
In mixed form: 11/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/18+15/90 16/18+30/90 16/36+15/90 48/18+15/90 16/18+45/90 16/54+15/90 80/18+15/90 16/18+75/90 16/90+15/90