Add 12/49 and 9/90
12/49 + 9/90 is 169/490.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 90 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 49 × 90 = 4410,
12/49 = 12 × 90/49 × 90 = 1080/4410 - Likewise, for the 2nd fraction, since 90 × 49 = 4410,
9/90 = 9 × 49/90 × 49 = 441/4410 - Add the two like fractions:
1080/4410 + 441/4410 = 1080 + 441/4410 = 1521/4410 - 1521/4410 simplified gives 169/490
- So, 12/49 + 9/90 = 169/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/49+9/90 12/49+18/90 12/98+9/90 36/49+9/90 12/49+27/90 60/49+9/90 12/49+45/90 84/49+9/90 12/49+63/90