Add 90/42 and 25/54
1st number: 2 6/42, 2nd number: 25/54
90/42 + 25/54 is 985/378.
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,
25/54 = 25 × 7/54 × 7 = 175/378 - Add the two like fractions:
810/378 + 175/378 = 810 + 175/378 = 985/378 - So, 90/42 + 25/54 = 985/378
In mixed form: 2229/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+50/54 90/84+25/54 90/42+75/54