Add 42/9 and 90/81
1st number: 4 6/9, 2nd number: 1 9/81
42/9 + 90/81 is 52/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 9 × 9 = 81,
42/9 = 42 × 9/9 × 9 = 378/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
90/81 = 90 × 1/81 × 1 = 90/81 - Add the two like fractions:
378/81 + 90/81 = 378 + 90/81 = 468/81 - 468/81 simplified gives 52/9
- So, 42/9 + 90/81 = 52/9
In mixed form: 57/9
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