Add 42/56 and 84/81
1st number: 42/56, 2nd number: 1 3/81
42/56 + 84/81 is 193/108.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 81 is 4536
Next, find the equivalent fraction of both fractional numbers with denominator 4536 - For the 1st fraction, since 56 × 81 = 4536,
42/56 = 42 × 81/56 × 81 = 3402/4536 - Likewise, for the 2nd fraction, since 81 × 56 = 4536,
84/81 = 84 × 56/81 × 56 = 4704/4536 - Add the two like fractions:
3402/4536 + 4704/4536 = 3402 + 4704/4536 = 8106/4536 - 8106/4536 simplified gives 193/108
- So, 42/56 + 84/81 = 193/108
In mixed form: 185/108
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Related: 84/56+84/81