Add 40/7 and 30/20
1st number: 5 5/7, 2nd number: 1 10/20
40/7 + 30/20 is 101/14.
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,
40/7 = 40 × 20/7 × 20 = 800/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
30/20 = 30 × 7/20 × 7 = 210/140 - Add the two like fractions:
800/140 + 210/140 = 800 + 210/140 = 1010/140 - 1010/140 simplified gives 101/14
- So, 40/7 + 30/20 = 101/14
In mixed form: 73/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/7+30/20 40/7+60/20 40/14+30/20 40/7+30/40 40/7+90/20 40/21+30/20 40/7+30/60 40/35+30/20 40/49+30/20