Add 7/81 and 42/8
1st number: 7/81, 2nd number: 5 2/8
7/81 + 42/8 is 1729/324.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 8 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 81 × 8 = 648,
7/81 = 7 × 8/81 × 8 = 56/648 - Likewise, for the 2nd fraction, since 8 × 81 = 648,
42/8 = 42 × 81/8 × 81 = 3402/648 - Add the two like fractions:
56/648 + 3402/648 = 56 + 3402/648 = 3458/648 - 3458/648 simplified gives 1729/324
- So, 7/81 + 42/8 = 1729/324
In mixed form: 5109/324
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