Add 15/80 and 81/16
1st number: 15/80, 2nd number: 5 1/16
15/80 + 81/16 is 21/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
15/80 = 15 × 1/80 × 1 = 15/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
81/16 = 81 × 5/16 × 5 = 405/80 - Add the two like fractions:
15/80 + 405/80 = 15 + 405/80 = 420/80 - 420/80 simplified gives 21/4
- So, 15/80 + 81/16 = 21/4
In mixed form: 51/4
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