Add 81/20 and 81/5
1st number: 4 1/20, 2nd number: 16 1/5
81/20 + 81/5 is 81/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 5 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
81/20 = 81 × 1/20 × 1 = 81/20 - Likewise, for the 2nd fraction, since 5 × 4 = 20,
81/5 = 81 × 4/5 × 4 = 324/20 - Add the two like fractions:
81/20 + 324/20 = 81 + 324/20 = 405/20 - 405/20 simplified gives 81/4
- So, 81/20 + 81/5 = 81/4
In mixed form: 201/4
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