Add 81/2 and 30/15
1st number: 40 1/2, 2nd number: 2 0/15
81/2 + 30/15 is 85/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 2 × 15 = 30,
81/2 = 81 × 15/2 × 15 = 1215/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
30/15 = 30 × 2/15 × 2 = 60/30 - Add the two like fractions:
1215/30 + 60/30 = 1215 + 60/30 = 1275/30 - 1275/30 simplified gives 85/2
- So, 81/2 + 30/15 = 85/2
In mixed form: 421/2
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