Add 42/18 and 27/30
1st number: 2 6/18, 2nd number: 27/30
42/18 + 27/30 is 97/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
27/30 = 27 × 3/30 × 3 = 81/90 - Add the two like fractions:
210/90 + 81/90 = 210 + 81/90 = 291/90 - 291/90 simplified gives 97/30
- So, 42/18 + 27/30 = 97/30
In mixed form: 37/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+27/30 42/18+54/30 42/36+27/30 42/18+27/60 42/18+81/30 42/54+27/30 42/18+27/90 42/90+27/30