Add 27/15 and 8/90
1st number: 1 12/15, 2nd number: 8/90
27/15 + 8/90 is 17/9.
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,
27/15 = 27 × 6/15 × 6 = 162/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
8/90 = 8 × 1/90 × 1 = 8/90 - Add the two like fractions:
162/90 + 8/90 = 162 + 8/90 = 170/90 - 170/90 simplified gives 17/9
- So, 27/15 + 8/90 = 17/9
In mixed form: 18/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/15+8/90 27/15+16/90 27/30+8/90 81/15+8/90 27/15+24/90 27/45+8/90 27/15+40/90 27/75+8/90 27/15+56/90