Add 60/72 and 81/80
1st number: 60/72, 2nd number: 1 1/80
60/72 + 81/80 is 443/240.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 72 × 10 = 720,
60/72 = 60 × 10/72 × 10 = 600/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
81/80 = 81 × 9/80 × 9 = 729/720 - Add the two like fractions:
600/720 + 729/720 = 600 + 729/720 = 1329/720 - 1329/720 simplified gives 443/240
- So, 60/72 + 81/80 = 443/240
In mixed form: 1203/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: