Add 63/27 and 18/7
1st number: 2 9/27, 2nd number: 2 4/7
63/27 + 18/7 is 103/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
63/27 = 63 × 7/27 × 7 = 441/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
18/7 = 18 × 27/7 × 27 = 486/189 - Add the two like fractions:
441/189 + 486/189 = 441 + 486/189 = 927/189 - 927/189 simplified gives 103/21
- So, 63/27 + 18/7 = 103/21
In mixed form: 419/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 63/27+36/7 63/54+18/7 63/27+18/14 63/27+54/7 63/81+18/7 63/27+18/21 63/27+90/7 63/27+18/35 63/27+18/49