Add 35/21 and 4/54
1st number: 1 14/21, 2nd number: 4/54
35/21 + 4/54 is 47/27.
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,
35/21 = 35 × 18/21 × 18 = 630/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
4/54 = 4 × 7/54 × 7 = 28/378 - Add the two like fractions:
630/378 + 28/378 = 630 + 28/378 = 658/378 - 658/378 simplified gives 47/27
- So, 35/21 + 4/54 = 47/27
In mixed form: 120/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/21+4/54 35/21+8/54 35/42+4/54 35/21+12/54 35/63+4/54 35/21+20/54 35/21+28/54