Add 42/6 and 90/81
1st number: 7 0/6, 2nd number: 1 9/81
42/6 + 90/81 is 73/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 81 is 162
Next, find the equivalent fraction of both fractional numbers with denominator 162 - For the 1st fraction, since 6 × 27 = 162,
42/6 = 42 × 27/6 × 27 = 1134/162 - Likewise, for the 2nd fraction, since 81 × 2 = 162,
90/81 = 90 × 2/81 × 2 = 180/162 - Add the two like fractions:
1134/162 + 180/162 = 1134 + 180/162 = 1314/162 - 1314/162 simplified gives 73/9
- So, 42/6 + 90/81 = 73/9
In mixed form: 81/9
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