Add 81/80 and 9/5
1st number: 1 1/80, 2nd number: 1 4/5
81/80 + 9/5 is 45/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 5 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 80 × 1 = 80,
81/80 = 81 × 1/80 × 1 = 81/80 - Likewise, for the 2nd fraction, since 5 × 16 = 80,
9/5 = 9 × 16/5 × 16 = 144/80 - Add the two like fractions:
81/80 + 144/80 = 81 + 144/80 = 225/80 - 225/80 simplified gives 45/16
- So, 81/80 + 9/5 = 45/16
In mixed form: 213/16
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