Add 21/35 and 18/14
1st number: 21/35, 2nd number: 1 4/14
21/35 + 18/14 is 66/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 14 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 35 × 2 = 70,
21/35 = 21 × 2/35 × 2 = 42/70 - Likewise, for the 2nd fraction, since 14 × 5 = 70,
18/14 = 18 × 5/14 × 5 = 90/70 - Add the two like fractions:
42/70 + 90/70 = 42 + 90/70 = 132/70 - 132/70 simplified gives 66/35
- So, 21/35 + 18/14 = 66/35
In mixed form: 131/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+18/14 21/35+36/14 21/70+18/14 21/35+18/28 63/35+18/14 21/35+54/14 21/35+18/42 21/35+90/14 21/35+18/70 21/35+18/98