Add 2/20 and 45/7
1st number: 2/20, 2nd number: 6 3/7
2/20 + 45/7 is 457/70.
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,
2/20 = 2 × 7/20 × 7 = 14/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
45/7 = 45 × 20/7 × 20 = 900/140 - Add the two like fractions:
14/140 + 900/140 = 14 + 900/140 = 914/140 - 914/140 simplified gives 457/70
- So, 2/20 + 45/7 = 457/70
In mixed form: 637/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/20+45/7 2/20+90/7 2/40+45/7 2/20+45/14 6/20+45/7 2/60+45/7 2/20+45/21 10/20+45/7 2/20+45/35 14/20+45/7 2/20+45/49