Add 4/42 and 81/84
4/42 + 81/84 is 89/84.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 84 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
4/42 = 4 × 2/42 × 2 = 8/84 - Likewise, for the 2nd fraction, since 84 × 1 = 84,
81/84 = 81 × 1/84 × 1 = 81/84 - Add the two like fractions:
8/84 + 81/84 = 8 + 81/84 = 89/84 - So, 4/42 + 81/84 = 89/84
In mixed form: 15/84
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