Add 81/2 and 18/80
1st number: 40 1/2, 2nd number: 18/80
81/2 + 18/80 is 1629/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 80 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 2 × 40 = 80,
81/2 = 81 × 40/2 × 40 = 3240/80 - Likewise, for the 2nd fraction, since 80 × 1 = 80,
18/80 = 18 × 1/80 × 1 = 18/80 - Add the two like fractions:
3240/80 + 18/80 = 3240 + 18/80 = 3258/80 - 3258/80 simplified gives 1629/40
- So, 81/2 + 18/80 = 1629/40
In mixed form: 4029/40
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