Add 18/12 and 18/35
1st number: 1 6/12, 2nd number: 18/35
18/12 + 18/35 is 141/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
18/12 = 18 × 35/12 × 35 = 630/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
18/35 = 18 × 12/35 × 12 = 216/420 - Add the two like fractions:
630/420 + 216/420 = 630 + 216/420 = 846/420 - 846/420 simplified gives 141/70
- So, 18/12 + 18/35 = 141/70
In mixed form: 21/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12+18/35 18/12+36/35 18/24+18/35 18/12+18/70 54/12+18/35 18/12+54/35 18/36+18/35 90/12+18/35 18/12+90/35 18/60+18/35 18/84+18/35