Add 27/63 and 8/12
27/63 + 8/12 is 23/21.
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,
27/63 = 27 × 4/63 × 4 = 108/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
8/12 = 8 × 21/12 × 21 = 168/252 - Add the two like fractions:
108/252 + 168/252 = 108 + 168/252 = 276/252 - 276/252 simplified gives 23/21
- So, 27/63 + 8/12 = 23/21
In mixed form: 12/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/63+8/12 27/63+16/12 27/63+8/24 81/63+8/12 27/63+24/12 27/63+8/36 27/63+40/12 27/63+8/60 27/63+56/12 27/63+8/84