Add 12/80 and 12/72
12/80 + 12/72 is 19/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 72 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 80 × 9 = 720,
12/80 = 12 × 9/80 × 9 = 108/720 - Likewise, for the 2nd fraction, since 72 × 10 = 720,
12/72 = 12 × 10/72 × 10 = 120/720 - Add the two like fractions:
108/720 + 120/720 = 108 + 120/720 = 228/720 - 228/720 simplified gives 19/60
- So, 12/80 + 12/72 = 19/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/80+12/72 12/80+24/72 36/80+12/72 12/80+36/72 60/80+12/72 12/80+60/72 84/80+12/72 12/80+84/72