Add 30/90 and 1/15
30/90 + 1/15 is 2/5.
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,
30/90 = 30 × 1/90 × 1 = 30/90 - Likewise, for the 2nd fraction, since 15 × 6 = 90,
1/15 = 1 × 6/15 × 6 = 6/90 - Add the two like fractions:
30/90 + 6/90 = 30 + 6/90 = 36/90 - 36/90 simplified gives 2/5
- So, 30/90 + 1/15 = 2/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90+1/15 30/90+2/15 30/90+1/30 30/90+3/15 30/90+1/45 30/90+5/15 30/90+1/75 30/90+7/15