Add 27/6 and 63/21
1st number: 4 3/6, 2nd number: 3 0/21
27/6 + 63/21 is 15/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
27/6 = 27 × 7/6 × 7 = 189/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
63/21 = 63 × 2/21 × 2 = 126/42 - Add the two like fractions:
189/42 + 126/42 = 189 + 126/42 = 315/42 - 315/42 simplified gives 15/2
- So, 27/6 + 63/21 = 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: 54/6+63/21 27/12+63/21 27/6+63/42 81/6+63/21 27/18+63/21 27/30+63/21 27/42+63/21