Add 20/75 and 12/80
20/75 + 12/80 is 5/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 80 is 1200
Next, find the equivalent fraction of both fractional numbers with denominator 1200 - For the 1st fraction, since 75 × 16 = 1200,
20/75 = 20 × 16/75 × 16 = 320/1200 - Likewise, for the 2nd fraction, since 80 × 15 = 1200,
12/80 = 12 × 15/80 × 15 = 180/1200 - Add the two like fractions:
320/1200 + 180/1200 = 320 + 180/1200 = 500/1200 - 500/1200 simplified gives 5/12
- So, 20/75 + 12/80 = 5/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/75+12/80 20/75+24/80 60/75+12/80 20/75+36/80 20/75+60/80 20/75+84/80