Add 27/20 and 70/12
1st number: 1 7/20, 2nd number: 5 10/12
27/20 + 70/12 is 431/60.
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,
27/20 = 27 × 3/20 × 3 = 81/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
70/12 = 70 × 5/12 × 5 = 350/60 - Add the two like fractions:
81/60 + 350/60 = 81 + 350/60 = 431/60 - So, 27/20 + 70/12 = 431/60
In mixed form: 711/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/20+70/12 27/40+70/12 27/20+70/24 81/20+70/12 27/60+70/12 27/20+70/36 27/20+70/60 27/20+70/84