Add 25/30 and 9/90
25/30 + 9/90 is 14/15.
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,
25/30 = 25 × 3/30 × 3 = 75/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
9/90 = 9 × 1/90 × 1 = 9/90 - Add the two like fractions:
75/90 + 9/90 = 75 + 9/90 = 84/90 - 84/90 simplified gives 14/15
- So, 25/30 + 9/90 = 14/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/30+9/90 25/30+18/90 25/60+9/90 75/30+9/90 25/30+27/90 25/90+9/90 25/30+45/90 25/30+63/90