Add 30/21 and 36/35
1st number: 1 9/21, 2nd number: 1 1/35
30/21 + 36/35 is 86/35.
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,
30/21 = 30 × 5/21 × 5 = 150/105 - Likewise, for the 2nd fraction, since 35 × 3 = 105,
36/35 = 36 × 3/35 × 3 = 108/105 - Add the two like fractions:
150/105 + 108/105 = 150 + 108/105 = 258/105 - 258/105 simplified gives 86/35
- So, 30/21 + 36/35 = 86/35
In mixed form: 216/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21+36/35 30/21+72/35 30/42+36/35 30/21+36/70 90/21+36/35 30/63+36/35