Add 40/20 and 27/12
1st number: 2 0/20, 2nd number: 2 3/12
40/20 + 27/12 is 17/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
40/20 = 40 × 3/20 × 3 = 120/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
27/12 = 27 × 5/12 × 5 = 135/60 - Add the two like fractions:
120/60 + 135/60 = 120 + 135/60 = 255/60 - 255/60 simplified gives 17/4
- So, 40/20 + 27/12 = 17/4
In mixed form: 41/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+27/12 40/20+54/12 40/20+27/24 40/20+81/12 40/60+27/12 40/20+27/36 40/20+27/60 40/20+27/84