Add 27/60 and 42/54
27/60 + 42/54 is 221/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
27/60 = 27 × 9/60 × 9 = 243/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
42/54 = 42 × 10/54 × 10 = 420/540 - Add the two like fractions:
243/540 + 420/540 = 243 + 420/540 = 663/540 - 663/540 simplified gives 221/180
- So, 27/60 + 42/54 = 221/180
In mixed form: 141/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/60+42/54 27/60+84/54 81/60+42/54