Add 15/5 and 54/7
1st number: 3 0/5, 2nd number: 7 5/7
15/5 + 54/7 is 75/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 7 is 35
Next, find the equivalent fraction of both fractional numbers with denominator 35 - For the 1st fraction, since 5 × 7 = 35,
15/5 = 15 × 7/5 × 7 = 105/35 - Likewise, for the 2nd fraction, since 7 × 5 = 35,
54/7 = 54 × 5/7 × 5 = 270/35 - Add the two like fractions:
105/35 + 270/35 = 105 + 270/35 = 375/35 - 375/35 simplified gives 75/7
- So, 15/5 + 54/7 = 75/7
In mixed form: 105/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/5+54/7 15/10+54/7 15/5+54/14 45/5+54/7 15/5+54/21 75/5+54/7 15/25+54/7 15/5+54/35 15/35+54/7 15/5+54/49