Add 42/18 and 3/10
1st number: 2 6/18, 2nd number: 3/10
42/18 + 3/10 is 79/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 10 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 10 × 9 = 90,
3/10 = 3 × 9/10 × 9 = 27/90 - Add the two like fractions:
210/90 + 27/90 = 210 + 27/90 = 237/90 - 237/90 simplified gives 79/30
- So, 42/18 + 3/10 = 79/30
In mixed form: 219/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/18+3/10 42/18+6/10 42/36+3/10 42/18+3/20 42/18+9/10 42/54+3/10 42/18+3/30 42/18+15/10 42/90+3/10 42/18+3/50 42/18+21/10 42/18+3/70