Add 9/60 and 80/81
9/60 + 80/81 is 1843/1620.
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,
9/60 = 9 × 27/60 × 27 = 243/1620 - Likewise, for the 2nd fraction, since 81 × 20 = 1620,
80/81 = 80 × 20/81 × 20 = 1600/1620 - Add the two like fractions:
243/1620 + 1600/1620 = 243 + 1600/1620 = 1843/1620 - So, 9/60 + 80/81 = 1843/1620
In mixed form: 1223/1620
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