Add 5/7 and 15/72
5/7 + 15/72 is 155/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 72 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 7 × 72 = 504,
5/7 = 5 × 72/7 × 72 = 360/504 - Likewise, for the 2nd fraction, since 72 × 7 = 504,
15/72 = 15 × 7/72 × 7 = 105/504 - Add the two like fractions:
360/504 + 105/504 = 360 + 105/504 = 465/504 - 465/504 simplified gives 155/168
- So, 5/7 + 15/72 = 155/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/7+15/72 5/7+30/72 5/14+15/72 15/7+15/72 5/7+45/72 5/21+15/72 25/7+15/72 5/7+75/72 5/35+15/72 35/7+15/72 5/49+15/72