Add 42/40 and 12/27
1st number: 1 2/40, 2nd number: 12/27
42/40 + 12/27 is 269/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080
Next, find the equivalent fraction of both fractional numbers with denominator 1080 - For the 1st fraction, since 40 × 27 = 1080,
42/40 = 42 × 27/40 × 27 = 1134/1080 - Likewise, for the 2nd fraction, since 27 × 40 = 1080,
12/27 = 12 × 40/27 × 40 = 480/1080 - Add the two like fractions:
1134/1080 + 480/1080 = 1134 + 480/1080 = 1614/1080 - 1614/1080 simplified gives 269/180
- So, 42/40 + 12/27 = 269/180
In mixed form: 189/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/40+12/27 42/40+24/27 42/80+12/27 42/40+12/54 42/40+36/27 42/40+12/81 42/40+60/27 42/40+84/27