Add 27/7 and 12/20
1st number: 3 6/7, 2nd number: 12/20
27/7 + 12/20 is 156/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 7 × 20 = 140,
27/7 = 27 × 20/7 × 20 = 540/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
12/20 = 12 × 7/20 × 7 = 84/140 - Add the two like fractions:
540/140 + 84/140 = 540 + 84/140 = 624/140 - 624/140 simplified gives 156/35
- So, 27/7 + 12/20 = 156/35
In mixed form: 416/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/7+12/20 27/7+24/20 27/14+12/20 27/7+12/40 81/7+12/20 27/7+36/20 27/21+12/20 27/7+12/60 27/7+60/20 27/35+12/20 27/7+84/20 27/49+12/20