Add 9/4 and 63/12
1st number: 2 1/4, 2nd number: 5 3/12
9/4 + 63/12 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 12 is 12
Next, find the equivalent fraction of both fractional numbers with denominator 12 - For the 1st fraction, since 4 × 3 = 12,
9/4 = 9 × 3/4 × 3 = 27/12 - Likewise, for the 2nd fraction, since 12 × 1 = 12,
63/12 = 63 × 1/12 × 1 = 63/12 - Add the two like fractions:
27/12 + 63/12 = 27 + 63/12 = 90/12 - 90/12 simplified gives 15/2
- So, 9/4 + 63/12 = 15/2
In mixed form: 71/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/4+63/12 9/8+63/12 9/4+63/24 27/4+63/12 9/12+63/12 9/4+63/36 45/4+63/12 9/20+63/12 9/4+63/60 63/4+63/12 9/28+63/12 9/4+63/84