Add 12/72 and 45/15
1st number: 12/72, 2nd number: 3 0/15
12/72 + 45/15 is 19/6.
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,
45/15 = 45 × 24/15 × 24 = 1080/360 - Add the two like fractions:
60/360 + 1080/360 = 60 + 1080/360 = 1140/360 - 1140/360 simplified gives 19/6
- So, 12/72 + 45/15 = 19/6
In mixed form: 31/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/72+45/15 12/72+90/15 12/72+45/30 36/72+45/15 60/72+45/15 12/72+45/75 84/72+45/15