Add 2/21 and 72/35
1st number: 2/21, 2nd number: 2 2/35
2/21 + 72/35 is 226/105.
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,
2/21 = 2 × 5/21 × 5 = 10/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
72/35 = 72 × 3/35 × 3 = 216/105 - Add the two like fractions:
10/105 + 216/105 = 10 + 216/105 = 226/105 - So, 2/21 + 72/35 = 226/105
In mixed form: 216/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/21+72/35 2/42+72/35 2/21+72/70 6/21+72/35 2/63+72/35 10/21+72/35 14/21+72/35