Add 54/63 and 20/27
54/63 + 20/27 is 302/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 63 × 3 = 189,
54/63 = 54 × 3/63 × 3 = 162/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
20/27 = 20 × 7/27 × 7 = 140/189 - Add the two like fractions:
162/189 + 140/189 = 162 + 140/189 = 302/189 - So, 54/63 + 20/27 = 302/189
In mixed form: 1113/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/63+40/27 54/63+20/54 54/63+60/27 54/63+20/81