Add 20/15 and 2/72
1st number: 1 5/15, 2nd number: 2/72
20/15 + 2/72 is 49/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 15 × 24 = 360,
20/15 = 20 × 24/15 × 24 = 480/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
2/72 = 2 × 5/72 × 5 = 10/360 - Add the two like fractions:
480/360 + 10/360 = 480 + 10/360 = 490/360 - 490/360 simplified gives 49/36
- So, 20/15 + 2/72 = 49/36
In mixed form: 113/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15+2/72 20/15+4/72 20/30+2/72 60/15+2/72 20/15+6/72 20/45+2/72 20/15+10/72 20/75+2/72 20/15+14/72