Add 54/60 and 18/81
54/60 + 18/81 is 101/90.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 81 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 60 × 27 = 1620,
54/60 = 54 × 27/60 × 27 = 1458/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
18/81 = 18 × 20/81 × 20 = 360/1620 - Add the two like fractions:
1458/1620 + 360/1620 = 1458 + 360/1620 = 1818/1620 - 1818/1620 simplified gives 101/90
- So, 54/60 + 18/81 = 101/90
In mixed form: 111/90
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