Add 18/70 and 21/6
1st number: 18/70, 2nd number: 3 3/6
18/70 + 21/6 is 263/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 6 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
18/70 = 18 × 3/70 × 3 = 54/210 - Likewise, for the 2nd fraction, since 6 × 35 = 210,
21/6 = 21 × 35/6 × 35 = 735/210 - Add the two like fractions:
54/210 + 735/210 = 54 + 735/210 = 789/210 - 789/210 simplified gives 263/70
- So, 18/70 + 21/6 = 263/70
In mixed form: 353/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70+21/6 18/70+42/6 18/70+21/12 54/70+21/6 18/70+63/6 18/70+21/18 90/70+21/6 18/70+21/30 18/70+21/42