Add 80/20 and 56/7
1st number: 4 0/20, 2nd number: 8 0/7
80/20 + 56/7 is 12/1.
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,
80/20 = 80 × 7/20 × 7 = 560/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
56/7 = 56 × 20/7 × 20 = 1120/140 - Add the two like fractions:
560/140 + 1120/140 = 560 + 1120/140 = 1680/140 - 1680/140 simplified gives 12/1
- So, 80/20 + 56/7 = 12/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/40+56/7 80/20+56/14 80/60+56/7 80/20+56/21 80/20+56/35 80/20+56/49