Add 42/80 and 60/9
1st number: 42/80, 2nd number: 6 6/9
42/80 + 60/9 is 863/120.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 9 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
42/80 = 42 × 9/80 × 9 = 378/720 - Likewise, for the 2nd fraction, since 9 × 80 = 720,
60/9 = 60 × 80/9 × 80 = 4800/720 - Add the two like fractions:
378/720 + 4800/720 = 378 + 4800/720 = 5178/720 - 5178/720 simplified gives 863/120
- So, 42/80 + 60/9 = 863/120
In mixed form: 723/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/80+60/9 42/80+60/18 42/80+60/27 42/80+60/45 42/80+60/63