Add 45/3 and 42/81
1st number: 15 0/3, 2nd number: 42/81
45/3 + 42/81 is 419/27.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
45/3 = 45 × 27/3 × 27 = 1215/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
42/81 = 42 × 1/81 × 1 = 42/81 - Add the two like fractions:
1215/81 + 42/81 = 1215 + 42/81 = 1257/81 - 1257/81 simplified gives 419/27
- So, 45/3 + 42/81 = 419/27
In mixed form: 1514/27
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