Add 30/4 and 12/18
1st number: 7 2/4, 2nd number: 12/18
30/4 + 12/18 is 49/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 4 × 9 = 36,
30/4 = 30 × 9/4 × 9 = 270/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
12/18 = 12 × 2/18 × 2 = 24/36 - Add the two like fractions:
270/36 + 24/36 = 270 + 24/36 = 294/36 - 294/36 simplified gives 49/6
- So, 30/4 + 12/18 = 49/6
In mixed form: 81/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4+12/18 30/4+24/18 30/8+12/18 30/4+12/36 90/4+12/18 30/4+36/18 30/12+12/18 30/4+12/54 30/4+60/18 30/20+12/18 30/4+12/90 30/4+84/18 30/28+12/18