Add 12/90 and 9/25
12/90 + 9/25 is 37/75.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 25 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 90 × 5 = 450,
12/90 = 12 × 5/90 × 5 = 60/450 - Likewise, for the 2nd fraction, since 25 × 18 = 450,
9/25 = 9 × 18/25 × 18 = 162/450 - Add the two like fractions:
60/450 + 162/450 = 60 + 162/450 = 222/450 - 222/450 simplified gives 37/75
- So, 12/90 + 9/25 = 37/75
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/90+9/25 12/90+18/25 12/90+9/50 36/90+9/25 12/90+27/25 12/90+9/75 60/90+9/25 12/90+45/25 84/90+9/25 12/90+63/25