Add 6/21 and 80/54
1st number: 6/21, 2nd number: 1 26/54
6/21 + 80/54 is 334/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 21 × 18 = 378,
6/21 = 6 × 18/21 × 18 = 108/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
80/54 = 80 × 7/54 × 7 = 560/378 - Add the two like fractions:
108/378 + 560/378 = 108 + 560/378 = 668/378 - 668/378 simplified gives 334/189
- So, 6/21 + 80/54 = 334/189
In mixed form: 1145/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+80/54 6/42+80/54 18/21+80/54 6/63+80/54 30/21+80/54 42/21+80/54