Add 42/8 and 21/81
1st number: 5 2/8, 2nd number: 21/81
42/8 + 21/81 is 595/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 81 is 648
Next, find the equivalent fraction of both fractional numbers with denominator 648 - For the 1st fraction, since 8 × 81 = 648,
42/8 = 42 × 81/8 × 81 = 3402/648 - Likewise, for the 2nd fraction, since 81 × 8 = 648,
21/81 = 21 × 8/81 × 8 = 168/648 - Add the two like fractions:
3402/648 + 168/648 = 3402 + 168/648 = 3570/648 - 3570/648 simplified gives 595/108
- So, 42/8 + 21/81 = 595/108
In mixed form: 555/108
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