Add 81/30 and 84/9
1st number: 2 21/30, 2nd number: 9 3/9
81/30 + 84/9 is 361/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 9 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
81/30 = 81 × 3/30 × 3 = 243/90 - Likewise, for the 2nd fraction, since 9 × 10 = 90,
84/9 = 84 × 10/9 × 10 = 840/90 - Add the two like fractions:
243/90 + 840/90 = 243 + 840/90 = 1083/90 - 1083/90 simplified gives 361/30
- So, 81/30 + 84/9 = 361/30
In mixed form: 121/30
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