Add 81/6 and 20/15
1st number: 13 3/6, 2nd number: 1 5/15
81/6 + 20/15 is 89/6.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 6 × 5 = 30,
81/6 = 81 × 5/6 × 5 = 405/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
20/15 = 20 × 2/15 × 2 = 40/30 - Add the two like fractions:
405/30 + 40/30 = 405 + 40/30 = 445/30 - 445/30 simplified gives 89/6
- So, 81/6 + 20/15 = 89/6
In mixed form: 145/6
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