Add 5/15 and 54/7
1st number: 5/15, 2nd number: 7 5/7
5/15 + 54/7 is 169/21.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 7 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 15 × 7 = 105,
5/15 = 5 × 7/15 × 7 = 35/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
54/7 = 54 × 15/7 × 15 = 810/105 - Add the two like fractions:
35/105 + 810/105 = 35 + 810/105 = 845/105 - 845/105 simplified gives 169/21
- So, 5/15 + 54/7 = 169/21
In mixed form: 81/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/15+54/7 5/30+54/7 5/15+54/14 5/45+54/7 5/15+54/21 25/15+54/7 5/75+54/7 5/15+54/35 35/15+54/7 5/15+54/49