Add 54/30 and 42/18
1st number: 1 24/30, 2nd number: 2 6/18
54/30 + 42/18 is 62/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
54/30 = 54 × 3/30 × 3 = 162/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
42/18 = 42 × 5/18 × 5 = 210/90 - Add the two like fractions:
162/90 + 210/90 = 162 + 210/90 = 372/90 - 372/90 simplified gives 62/15
- So, 54/30 + 42/18 = 62/15
In mixed form: 42/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/30+84/18 54/60+42/18 54/30+42/36 54/90+42/18 54/30+42/54 54/30+42/90