Add 15/4 and 81/80
1st number: 3 3/4, 2nd number: 1 1/80
15/4 + 81/80 is 381/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 4 × 20 = 80,
15/4 = 15 × 20/4 × 20 = 300/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
81/80 = 81 × 1/80 × 1 = 81/80 - Add the two like fractions:
300/80 + 81/80 = 300 + 81/80 = 381/80 - So, 15/4 + 81/80 = 381/80
In mixed form: 461/80
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