Add 42/80 and 49/27
1st number: 42/80, 2nd number: 1 22/27
42/80 + 49/27 is 2527/1080.
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,
42/80 = 42 × 27/80 × 27 = 1134/2160 - Likewise, for the 2nd fraction, since 27 × 80 = 2160,
49/27 = 49 × 80/27 × 80 = 3920/2160 - Add the two like fractions:
1134/2160 + 3920/2160 = 1134 + 3920/2160 = 5054/2160 - 5054/2160 simplified gives 2527/1080
- So, 42/80 + 49/27 = 2527/1080
In mixed form: 2367/1080
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80+49/27 42/80+98/27 42/80+49/54 42/80+49/81