Add 54/60 and 20/81
54/60 + 20/81 is 929/810.
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,
20/81 = 20 × 20/81 × 20 = 400/1620 - Add the two like fractions:
1458/1620 + 400/1620 = 1458 + 400/1620 = 1858/1620 - 1858/1620 simplified gives 929/810
- So, 54/60 + 20/81 = 929/810
In mixed form: 1119/810
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