Add 6/21 and 10/54
6/21 + 10/54 is 89/189.
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,
10/54 = 10 × 7/54 × 7 = 70/378 - Add the two like fractions:
108/378 + 70/378 = 108 + 70/378 = 178/378 - 178/378 simplified gives 89/189
- So, 6/21 + 10/54 = 89/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/21+10/54 6/21+20/54 6/42+10/54 18/21+10/54 6/21+30/54 6/63+10/54 30/21+10/54 6/21+50/54 42/21+10/54 6/21+70/54