Add 42/84 and 81/24
1st number: 42/84, 2nd number: 3 9/24
42/84 + 81/24 is 31/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
42/84 = 42 × 2/84 × 2 = 84/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
81/24 = 81 × 7/24 × 7 = 567/168 - Add the two like fractions:
84/168 + 567/168 = 84 + 567/168 = 651/168 - 651/168 simplified gives 31/8
- So, 42/84 + 81/24 = 31/8
In mixed form: 37/8
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