Add 18/6 and 21/35
1st number: 3 0/6, 2nd number: 21/35
18/6 + 21/35 is 18/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 35 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 6 × 35 = 210,
18/6 = 18 × 35/6 × 35 = 630/210 - Likewise, for the 2nd fraction, since 35 × 6 = 210,
21/35 = 21 × 6/35 × 6 = 126/210 - Add the two like fractions:
630/210 + 126/210 = 630 + 126/210 = 756/210 - 756/210 simplified gives 18/5
- So, 18/6 + 21/35 = 18/5
In mixed form: 33/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/6+21/35 18/6+42/35 18/12+21/35 18/6+21/70 54/6+21/35 18/6+63/35 90/6+21/35 18/30+21/35 18/42+21/35