Add 80/60 and 56/72
1st number: 1 20/60, 2nd number: 56/72
80/60 + 56/72 is 19/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 60 × 6 = 360,
80/60 = 80 × 6/60 × 6 = 480/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
56/72 = 56 × 5/72 × 5 = 280/360 - Add the two like fractions:
480/360 + 280/360 = 480 + 280/360 = 760/360 - 760/360 simplified gives 19/9
- So, 80/60 + 56/72 = 19/9
In mixed form: 21/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: