Add 12/7 and 2/20
1st number: 1 5/7, 2nd number: 2/20
12/7 + 2/20 is 127/70.
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,
12/7 = 12 × 20/7 × 20 = 240/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
2/20 = 2 × 7/20 × 7 = 14/140 - Add the two like fractions:
240/140 + 14/140 = 240 + 14/140 = 254/140 - 254/140 simplified gives 127/70
- So, 12/7 + 2/20 = 127/70
In mixed form: 157/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7+2/20 12/7+4/20 12/14+2/20 12/7+2/40 36/7+2/20 12/7+6/20 12/21+2/20 12/7+2/60 60/7+2/20 12/7+10/20 12/35+2/20 84/7+2/20 12/7+14/20 12/49+2/20