Add 30/50 and 81/80
1st number: 30/50, 2nd number: 1 1/80
30/50 + 81/80 is 129/80.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 50 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 50 × 8 = 400,
30/50 = 30 × 8/50 × 8 = 240/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
81/80 = 81 × 5/80 × 5 = 405/400 - Add the two like fractions:
240/400 + 405/400 = 240 + 405/400 = 645/400 - 645/400 simplified gives 129/80
- So, 30/50 + 81/80 = 129/80
In mixed form: 149/80
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