Add 81/30 and 30/27
1st number: 2 21/30, 2nd number: 1 3/27
81/30 + 30/27 is 343/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 30 × 9 = 270,
81/30 = 81 × 9/30 × 9 = 729/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
30/27 = 30 × 10/27 × 10 = 300/270 - Add the two like fractions:
729/270 + 300/270 = 729 + 300/270 = 1029/270 - 1029/270 simplified gives 343/90
- So, 81/30 + 30/27 = 343/90
In mixed form: 373/90
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