Add 80/20 and 9/70
1st number: 4 0/20, 2nd number: 9/70
80/20 + 9/70 is 289/70.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 70 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
80/20 = 80 × 7/20 × 7 = 560/140 - Likewise, for the 2nd fraction, since 70 × 2 = 140,
9/70 = 9 × 2/70 × 2 = 18/140 - Add the two like fractions:
560/140 + 18/140 = 560 + 18/140 = 578/140 - 578/140 simplified gives 289/70
- So, 80/20 + 9/70 = 289/70
In mixed form: 49/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+18/70 80/40+9/70 80/20+27/70 80/60+9/70 80/20+45/70 80/20+63/70