Add 81/6 and 75/21
1st number: 13 3/6, 2nd number: 3 12/21
81/6 + 75/21 is 239/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 6 × 7 = 42,
81/6 = 81 × 7/6 × 7 = 567/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
75/21 = 75 × 2/21 × 2 = 150/42 - Add the two like fractions:
567/42 + 150/42 = 567 + 150/42 = 717/42 - 717/42 simplified gives 239/14
- So, 81/6 + 75/21 = 239/14
In mixed form: 171/14
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