Add 90/42 and 3/54
1st number: 2 6/42, 2nd number: 3/54
90/42 + 3/54 is 277/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
90/42 = 90 × 9/42 × 9 = 810/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
3/54 = 3 × 7/54 × 7 = 21/378 - Add the two like fractions:
810/378 + 21/378 = 810 + 21/378 = 831/378 - 831/378 simplified gives 277/126
- So, 90/42 + 3/54 = 277/126
In mixed form: 225/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+6/54 90/84+3/54 90/42+9/54 90/42+15/54 90/42+21/54