Add 30/21 and 36/6
1st number: 1 9/21, 2nd number: 6 0/6
30/21 + 36/6 is 52/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 6 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
30/21 = 30 × 2/21 × 2 = 60/42 - Likewise, for the 2nd fraction, since 6 × 7 = 42,
36/6 = 36 × 7/6 × 7 = 252/42 - Add the two like fractions:
60/42 + 252/42 = 60 + 252/42 = 312/42 - 312/42 simplified gives 52/7
- So, 30/21 + 36/6 = 52/7
In mixed form: 73/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/21+36/6 30/21+72/6 30/42+36/6 30/21+36/12 90/21+36/6 30/63+36/6 30/21+36/18 30/21+36/30 30/21+36/42