Add 9/12 and 63/20
1st number: 9/12, 2nd number: 3 3/20
9/12 + 63/20 is 39/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 20 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
9/12 = 9 × 5/12 × 5 = 45/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
63/20 = 63 × 3/20 × 3 = 189/60 - Add the two like fractions:
45/60 + 189/60 = 45 + 189/60 = 234/60 - 234/60 simplified gives 39/10
- So, 9/12 + 63/20 = 39/10
In mixed form: 39/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/12+63/20 9/24+63/20 9/12+63/40 27/12+63/20 9/36+63/20 9/12+63/60 45/12+63/20 9/60+63/20 63/12+63/20 9/84+63/20