Add 20/7 and 54/27
1st number: 2 6/7, 2nd number: 2 0/27
20/7 + 54/27 is 34/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 7 × 27 = 189,
20/7 = 20 × 27/7 × 27 = 540/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
54/27 = 54 × 7/27 × 7 = 378/189 - Add the two like fractions:
540/189 + 378/189 = 540 + 378/189 = 918/189 - 918/189 simplified gives 34/7
- So, 20/7 + 54/27 = 34/7
In mixed form: 46/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/7+54/27 20/14+54/27 60/7+54/27 20/21+54/27 20/7+54/81 20/35+54/27 20/49+54/27