Add 24/21 and 81/42
1st number: 1 3/21, 2nd number: 1 39/42
24/21 + 81/42 is 43/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 42 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 21 × 2 = 42,
24/21 = 24 × 2/21 × 2 = 48/42 - Likewise, for the 2nd fraction, since 42 × 1 = 42,
81/42 = 81 × 1/42 × 1 = 81/42 - Add the two like fractions:
48/42 + 81/42 = 48 + 81/42 = 129/42 - 129/42 simplified gives 43/14
- So, 24/21 + 81/42 = 43/14
In mixed form: 31/14
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