Add 27/7 and 18/54
1st number: 3 6/7, 2nd number: 18/54
27/7 + 18/54 is 88/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 7 × 54 = 378,
27/7 = 27 × 54/7 × 54 = 1458/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
18/54 = 18 × 7/54 × 7 = 126/378 - Add the two like fractions:
1458/378 + 126/378 = 1458 + 126/378 = 1584/378 - 1584/378 simplified gives 88/21
- So, 27/7 + 18/54 = 88/21
In mixed form: 44/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+18/54 27/7+36/54 27/14+18/54 81/7+18/54 27/21+18/54 27/7+90/54 27/35+18/54 27/49+18/54