Add 30/21 and 60/35
1st number: 1 9/21, 2nd number: 1 25/35
30/21 + 60/35 is 22/7.
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,
60/35 = 60 × 3/35 × 3 = 180/105 - Add the two like fractions:
150/105 + 180/105 = 150 + 180/105 = 330/105 - 330/105 simplified gives 22/7
- So, 30/21 + 60/35 = 22/7
In mixed form: 31/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21+60/35 30/42+60/35 30/21+60/70 90/21+60/35 30/63+60/35