Add 12/80 and 15/18
12/80 + 15/18 is 59/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 18 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 18 × 40 = 720,
15/18 = 15 × 40/18 × 40 = 600/720 - Add the two like fractions:
108/720 + 600/720 = 108 + 600/720 = 708/720 - 708/720 simplified gives 59/60
- So, 12/80 + 15/18 = 59/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/80+15/18 12/80+30/18 12/80+15/36 36/80+15/18 12/80+45/18 12/80+15/54 60/80+15/18 12/80+75/18 12/80+15/90 84/80+15/18