Add 42/2 and 81/5
1st number: 21 0/2, 2nd number: 16 1/5
42/2 + 81/5 is 186/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 5 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
42/2 = 42 × 5/2 × 5 = 210/10 - Likewise, for the 2nd fraction, since 5 × 2 = 10,
81/5 = 81 × 2/5 × 2 = 162/10 - Add the two like fractions:
210/10 + 162/10 = 210 + 162/10 = 372/10 - 372/10 simplified gives 186/5
- So, 42/2 + 81/5 = 186/5
In mixed form: 371/5
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