Add 1/5 and 15/90
1/5 + 15/90 is 11/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
1/5 = 1 × 18/5 × 18 = 18/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
15/90 = 15 × 1/90 × 1 = 15/90 - Add the two like fractions:
18/90 + 15/90 = 18 + 15/90 = 33/90 - 33/90 simplified gives 11/30
- So, 1/5 + 15/90 = 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/5+15/90 1/5+30/90 1/10+15/90 3/5+15/90 1/5+45/90 1/15+15/90 1/5+75/90 1/25+15/90 7/5+15/90 1/35+15/90