Add 12/72 and 3/15
12/72 + 3/15 is 11/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 15 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
12/72 = 12 × 5/72 × 5 = 60/360 - Likewise, for the 2nd fraction, since 15 × 24 = 360,
3/15 = 3 × 24/15 × 24 = 72/360 - Add the two like fractions:
60/360 + 72/360 = 60 + 72/360 = 132/360 - 132/360 simplified gives 11/30
- So, 12/72 + 3/15 = 11/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/72+3/15 12/72+6/15 12/72+3/30 36/72+3/15 12/72+9/15 12/72+3/45 60/72+3/15 12/72+3/75 84/72+3/15 12/72+21/15