Add 18/15 and 63/7
1st number: 1 3/15, 2nd number: 9 0/7
18/15 + 63/7 is 51/5.
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,
18/15 = 18 × 7/15 × 7 = 126/105 - Likewise, for the 2nd fraction, since 7 × 15 = 105,
63/7 = 63 × 15/7 × 15 = 945/105 - Add the two like fractions:
126/105 + 945/105 = 126 + 945/105 = 1071/105 - 1071/105 simplified gives 51/5
- So, 18/15 + 63/7 = 51/5
In mixed form: 101/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/15+63/7 18/30+63/7 18/15+63/14 54/15+63/7 18/45+63/7 18/15+63/21 90/15+63/7 18/75+63/7 18/15+63/35 18/15+63/49