Add 27/30 and 36/81
27/30 + 36/81 is 121/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 81 is 810
Next, find the equivalent fraction of both fractional numbers with denominator 810 - For the 1st fraction, since 30 × 27 = 810,
27/30 = 27 × 27/30 × 27 = 729/810 - Likewise, for the 2nd fraction, since 81 × 10 = 810,
36/81 = 36 × 10/81 × 10 = 360/810 - Add the two like fractions:
729/810 + 360/810 = 729 + 360/810 = 1089/810 - 1089/810 simplified gives 121/90
- So, 27/30 + 36/81 = 121/90
In mixed form: 131/90
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