Add 81/3 and 12/90
1st number: 27 0/3, 2nd number: 12/90
81/3 + 12/90 is 407/15.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
81/3 = 81 × 30/3 × 30 = 2430/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
12/90 = 12 × 1/90 × 1 = 12/90 - Add the two like fractions:
2430/90 + 12/90 = 2430 + 12/90 = 2442/90 - 2442/90 simplified gives 407/15
- So, 81/3 + 12/90 = 407/15
In mixed form: 272/15
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