Add 9/63 and 40/12
1st number: 9/63, 2nd number: 3 4/12
9/63 + 40/12 is 73/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
9/63 = 9 × 4/63 × 4 = 36/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
40/12 = 40 × 21/12 × 21 = 840/252 - Add the two like fractions:
36/252 + 840/252 = 36 + 840/252 = 876/252 - 876/252 simplified gives 73/21
- So, 9/63 + 40/12 = 73/21
In mixed form: 310/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/63+40/12 9/63+80/12 9/63+40/24 27/63+40/12 9/63+40/36 45/63+40/12 9/63+40/60 9/63+40/84