Add 24/42 and 81/21
1st number: 24/42, 2nd number: 3 18/21
24/42 + 81/21 is 31/7.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 21 is 42
Next, find the equivalent fraction of both fractional numbers with denominator 42 - For the 1st fraction, since 42 × 1 = 42,
24/42 = 24 × 1/42 × 1 = 24/42 - Likewise, for the 2nd fraction, since 21 × 2 = 42,
81/21 = 81 × 2/21 × 2 = 162/42 - Add the two like fractions:
24/42 + 162/42 = 24 + 162/42 = 186/42 - 186/42 simplified gives 31/7
- So, 24/42 + 81/21 = 31/7
In mixed form: 43/7
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