Add 7/90 and 81/49
1st number: 7/90, 2nd number: 1 32/49
7/90 + 81/49 is 7633/4410.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
7/90 = 7 × 49/90 × 49 = 343/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
81/49 = 81 × 90/49 × 90 = 7290/4410 - Add the two like fractions:
343/4410 + 7290/4410 = 343 + 7290/4410 = 7633/4410 - So, 7/90 + 81/49 = 7633/4410
In mixed form: 13223/4410
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/90+81/49 7/90+81/98 21/90+81/49 35/90+81/49 49/90+81/49