Add 15/72 and 27/7
1st number: 15/72, 2nd number: 3 6/7
15/72 + 27/7 is 683/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 7 is 504
Next, find the equivalent fraction of both fractional numbers with denominator 504 - For the 1st fraction, since 72 × 7 = 504,
15/72 = 15 × 7/72 × 7 = 105/504 - Likewise, for the 2nd fraction, since 7 × 72 = 504,
27/7 = 27 × 72/7 × 72 = 1944/504 - Add the two like fractions:
105/504 + 1944/504 = 105 + 1944/504 = 2049/504 - 2049/504 simplified gives 683/168
- So, 15/72 + 27/7 = 683/168
In mixed form: 411/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/72+27/7 15/72+54/7 15/72+27/14 45/72+27/7 15/72+81/7 15/72+27/21 75/72+27/7 15/72+27/35 15/72+27/49