Add 12/45 and 60/80
12/45 + 60/80 is 61/60.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 80 is 720
Next, find the equivalent fraction of both fractional numbers with denominator 720 - For the 1st fraction, since 45 × 16 = 720,
12/45 = 12 × 16/45 × 16 = 192/720 - Likewise, for the 2nd fraction, since 80 × 9 = 720,
60/80 = 60 × 9/80 × 9 = 540/720 - Add the two like fractions:
192/720 + 540/720 = 192 + 540/720 = 732/720 - 732/720 simplified gives 61/60
- So, 12/45 + 60/80 = 61/60
In mixed form: 11/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45+60/80 12/90+60/80 36/45+60/80 60/45+60/80 84/45+60/80