Add 15/12 and 63/20
1st number: 1 3/12, 2nd number: 3 3/20
15/12 + 63/20 is 22/5.
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,
15/12 = 15 × 5/12 × 5 = 75/60 - Likewise, for the 2nd fraction, since 20 × 3 = 60,
63/20 = 63 × 3/20 × 3 = 189/60 - Add the two like fractions:
75/60 + 189/60 = 75 + 189/60 = 264/60 - 264/60 simplified gives 22/5
- So, 15/12 + 63/20 = 22/5
In mixed form: 42/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/12+63/20 15/24+63/20 15/12+63/40 45/12+63/20 15/36+63/20 15/12+63/60 75/12+63/20 15/60+63/20 15/84+63/20