Add 3/20 and 25/7
1st number: 3/20, 2nd number: 3 4/7
3/20 + 25/7 is 521/140.
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,
3/20 = 3 × 7/20 × 7 = 21/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
25/7 = 25 × 20/7 × 20 = 500/140 - Add the two like fractions:
21/140 + 500/140 = 21 + 500/140 = 521/140 - So, 3/20 + 25/7 = 521/140
In mixed form: 3101/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20+25/7 3/20+50/7 3/40+25/7 3/20+25/14 9/20+25/7 3/20+75/7 3/60+25/7 3/20+25/21 15/20+25/7 3/20+25/35 21/20+25/7 3/20+25/49