Add 81/12 and 72/30
1st number: 6 9/12, 2nd number: 2 12/30
81/12 + 72/30 is 183/20.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 12 × 5 = 60,
81/12 = 81 × 5/12 × 5 = 405/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
72/30 = 72 × 2/30 × 2 = 144/60 - Add the two like fractions:
405/60 + 144/60 = 405 + 144/60 = 549/60 - 549/60 simplified gives 183/20
- So, 81/12 + 72/30 = 183/20
In mixed form: 93/20
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