Add 42/54 and 42/30
1st number: 42/54, 2nd number: 1 12/30
42/54 + 42/30 is 98/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 54 and 30 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 54 × 5 = 270,
42/54 = 42 × 5/54 × 5 = 210/270 - Likewise, for the 2nd fraction, since 30 × 9 = 270,
42/30 = 42 × 9/30 × 9 = 378/270 - Add the two like fractions:
210/270 + 378/270 = 210 + 378/270 = 588/270 - 588/270 simplified gives 98/45
- So, 42/54 + 42/30 = 98/45
In mixed form: 28/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/54+42/30 42/54+84/30 42/54+42/60 42/54+42/90