Add 36/21 and 1/54
1st number: 1 15/21, 2nd number: 1/54
36/21 + 1/54 is 655/378.
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,
36/21 = 36 × 18/21 × 18 = 648/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
1/54 = 1 × 7/54 × 7 = 7/378 - Add the two like fractions:
648/378 + 7/378 = 648 + 7/378 = 655/378 - So, 36/21 + 1/54 = 655/378
In mixed form: 1277/378
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/21+1/54 36/21+2/54 36/42+1/54 36/21+3/54 36/63+1/54 36/21+5/54 36/21+7/54