Add 5/15 and 8/7
1st number: 5/15, 2nd number: 1 1/7
5/15 + 8/7 is 31/21.
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,
8/7 = 8 × 15/7 × 15 = 120/105 - Add the two like fractions:
35/105 + 120/105 = 35 + 120/105 = 155/105 - 155/105 simplified gives 31/21
- So, 5/15 + 8/7 = 31/21
In mixed form: 110/21
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