Add 28/60 and 42/27
1st number: 28/60, 2nd number: 1 15/27
28/60 + 42/27 is 91/45.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 27 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
28/60 = 28 × 9/60 × 9 = 252/540 - Likewise, for the 2nd fraction, since 27 × 20 = 540,
42/27 = 42 × 20/27 × 20 = 840/540 - Add the two like fractions:
252/540 + 840/540 = 252 + 840/540 = 1092/540 - 1092/540 simplified gives 91/45
- So, 28/60 + 42/27 = 91/45
In mixed form: 21/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/60+42/27 28/60+84/27 28/60+42/54 84/60+42/27 28/60+42/81