Add 90/7 and 7/54
1st number: 12 6/7, 2nd number: 7/54
90/7 + 7/54 is 4909/378.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
90/7 = 90 × 54/7 × 54 = 4860/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
7/54 = 7 × 7/54 × 7 = 49/378 - Add the two like fractions:
4860/378 + 49/378 = 4860 + 49/378 = 4909/378 - So, 90/7 + 7/54 = 4909/378
In mixed form: 12373/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+14/54 90/14+7/54 90/7+21/54 90/21+7/54 90/7+35/54 90/35+7/54 90/7+49/54 90/49+7/54