Add 18/15 and 81/7
1st number: 1 3/15, 2nd number: 11 4/7
18/15 + 81/7 is 447/35.
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,
81/7 = 81 × 15/7 × 15 = 1215/105 - Add the two like fractions:
126/105 + 1215/105 = 126 + 1215/105 = 1341/105 - 1341/105 simplified gives 447/35
- So, 18/15 + 81/7 = 447/35
In mixed form: 1227/35
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