Add 80/10 and 80/72
1st number: 8 0/10, 2nd number: 1 8/72
80/10 + 80/72 is 82/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 10 × 36 = 360,
80/10 = 80 × 36/10 × 36 = 2880/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
80/72 = 80 × 5/72 × 5 = 400/360 - Add the two like fractions:
2880/360 + 400/360 = 2880 + 400/360 = 3280/360 - 3280/360 simplified gives 82/9
- So, 80/10 + 80/72 = 82/9
In mixed form: 91/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/20+80/72 80/30+80/72 80/50+80/72 80/70+80/72