Add 3/30 and 3/90
3/30 + 3/90 is 2/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
3/30 = 3 × 3/30 × 3 = 9/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
3/90 = 3 × 1/90 × 1 = 3/90 - Add the two like fractions:
9/90 + 3/90 = 9 + 3/90 = 12/90 - 12/90 simplified gives 2/15
- So, 3/30 + 3/90 = 2/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/30+3/90 3/30+6/90 3/60+3/90 9/30+3/90 3/30+9/90 3/90+3/90 15/30+3/90 3/30+15/90 21/30+3/90 3/30+21/90