Add 81/90 and 30/27
1st number: 81/90, 2nd number: 1 3/27
81/90 + 30/27 is 181/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
81/90 = 81 × 3/90 × 3 = 243/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
30/27 = 30 × 10/27 × 10 = 300/270 - Add the two like fractions:
243/270 + 300/270 = 243 + 300/270 = 543/270 - 543/270 simplified gives 181/90
- So, 81/90 + 30/27 = 181/90
In mixed form: 21/90
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