Add 1/20 and 20/7
1st number: 1/20, 2nd number: 2 6/7
1/20 + 20/7 is 407/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
1/20 = 1 × 7/20 × 7 = 7/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
20/7 = 20 × 20/7 × 20 = 400/140 - Add the two like fractions:
7/140 + 400/140 = 7 + 400/140 = 407/140 - So, 1/20 + 20/7 = 407/140
In mixed form: 2127/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+20/7 1/20+40/7 1/40+20/7 1/20+20/14 3/20+20/7 1/20+60/7 1/60+20/7 1/20+20/21 5/20+20/7 1/20+20/35 7/20+20/7 1/20+20/49