Add 42/30 and 24/18
1st number: 1 12/30, 2nd number: 1 6/18
42/30 + 24/18 is 41/15.
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,
42/30 = 42 × 3/30 × 3 = 126/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
24/18 = 24 × 5/18 × 5 = 120/90 - Add the two like fractions:
126/90 + 120/90 = 126 + 120/90 = 246/90 - 246/90 simplified gives 41/15
- So, 42/30 + 24/18 = 41/15
In mixed form: 211/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/30+24/18 42/30+48/18 42/60+24/18 42/30+24/36 42/30+72/18 42/90+24/18 42/30+24/54 42/30+24/90