Add 80/40 and 50/7
1st number: 2 0/40, 2nd number: 7 1/7
80/40 + 50/7 is 64/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 7 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
80/40 = 80 × 7/40 × 7 = 560/280 - Likewise, for the 2nd fraction, since 7 × 40 = 280,
50/7 = 50 × 40/7 × 40 = 2000/280 - Add the two like fractions:
560/280 + 2000/280 = 560 + 2000/280 = 2560/280 - 2560/280 simplified gives 64/7
- So, 80/40 + 50/7 = 64/7
In mixed form: 91/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/40+50/14 80/40+50/21 80/40+50/35 80/40+50/49