Add 12/35 and 63/27, Solve 12/35 + 2 9/27 as a fraction

Add 12/35 and 63/27

1^st number: 12/35, 2^nd number: 2 9/27

12/35 + 63/27 is 281/105.

Find the least common denominator or LCM of the two denominators:
LCM of 35 and 27 is 945

Next, find the equivalent fraction of both fractional numbers with denominator 945
For the 1st fraction, since 35 × 27 = 945,
12/35 = 12 × 27/35 × 27 = 324/945
Likewise, for the 2nd fraction, since 27 × 35 = 945,
63/27 = 63 × 35/27 × 35 = 2205/945
Add the two like fractions:
324/945 + 2205/945 = 324 + 2205/945 = 2529/945
2529/945 simplified gives 281/105
So, 12/35 + 63/27 = 281/105
In mixed form: 271/105

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad