Add 28/80 and 42/27
1st number: 28/80, 2nd number: 1 15/27
28/80 + 42/27 is 343/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 27 is 2160
Next, find the equivalent fraction of both fractional numbers with denominator 2160 - For the 1st fraction, since 80 × 27 = 2160,
28/80 = 28 × 27/80 × 27 = 756/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
42/27 = 42 × 80/27 × 80 = 3360/2160 - Add the two like fractions:
756/2160 + 3360/2160 = 756 + 3360/2160 = 4116/2160 - 4116/2160 simplified gives 343/180
- So, 28/80 + 42/27 = 343/180
In mixed form: 1163/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/80+42/27 28/80+84/27 28/80+42/54 84/80+42/27 28/80+42/81