Add 63/9 and 40/84
1st number: 7 0/9, 2nd number: 40/84
63/9 + 40/84 is 157/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 84 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 9 × 28 = 252,
63/9 = 63 × 28/9 × 28 = 1764/252 - Likewise, for the 2nd fraction, since 84 × 3 = 252,
40/84 = 40 × 3/84 × 3 = 120/252 - Add the two like fractions:
1764/252 + 120/252 = 1764 + 120/252 = 1884/252 - 1884/252 simplified gives 157/21
- So, 63/9 + 40/84 = 157/21
In mixed form: 710/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/9+80/84 63/18+40/84 63/27+40/84 63/45+40/84