Add 20/27 and 9/7
1st number: 20/27, 2nd number: 1 2/7
20/27 + 9/7 is 383/189.
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,
20/27 = 20 × 7/27 × 7 = 140/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
9/7 = 9 × 27/7 × 27 = 243/189 - Add the two like fractions:
140/189 + 243/189 = 140 + 243/189 = 383/189 - So, 20/27 + 9/7 = 383/189
In mixed form: 25/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/27+9/7 20/27+18/7 20/54+9/7 20/27+9/14 60/27+9/7 20/27+27/7 20/81+9/7 20/27+9/21 20/27+45/7 20/27+9/35 20/27+63/7 20/27+9/49