Add 6/21 and 42/35
1st number: 6/21, 2nd number: 1 7/35
6/21 + 42/35 is 52/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 35 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
6/21 = 6 × 5/21 × 5 = 30/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
42/35 = 42 × 3/35 × 3 = 126/105 - Add the two like fractions:
30/105 + 126/105 = 30 + 126/105 = 156/105 - 156/105 simplified gives 52/35
- So, 6/21 + 42/35 = 52/35
In mixed form: 117/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+42/35 6/21+84/35 6/42+42/35 6/21+42/70 18/21+42/35 6/63+42/35 30/21+42/35 42/21+42/35