Add 81/90 and 18/27
81/90 + 18/27 is 47/30.
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,
18/27 = 18 × 10/27 × 10 = 180/270 - Add the two like fractions:
243/270 + 180/270 = 243 + 180/270 = 423/270 - 423/270 simplified gives 47/30
- So, 81/90 + 18/27 = 47/30
In mixed form: 117/30
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