Add 3/12 and 30/72
3/12 + 30/72 is 2/3.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 72 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 12 × 6 = 72,
3/12 = 3 × 6/12 × 6 = 18/72 - Likewise, for the 2nd fraction, since 72 × 1 = 72,
30/72 = 30 × 1/72 × 1 = 30/72 - Add the two like fractions:
18/72 + 30/72 = 18 + 30/72 = 48/72 - 48/72 simplified gives 2/3
- So, 3/12 + 30/72 = 2/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+30/72 3/12+60/72 3/24+30/72 9/12+30/72 3/12+90/72 3/36+30/72 15/12+30/72 3/60+30/72 21/12+30/72 3/84+30/72