Add 81/14 and 20/15
1st number: 5 11/14, 2nd number: 1 5/15
81/14 + 20/15 is 299/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
81/14 = 81 × 15/14 × 15 = 1215/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
20/15 = 20 × 14/15 × 14 = 280/210 - Add the two like fractions:
1215/210 + 280/210 = 1215 + 280/210 = 1495/210 - 1495/210 simplified gives 299/42
- So, 81/14 + 20/15 = 299/42
In mixed form: 75/42
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