Add 90/81 and 30/60
1st number: 1 9/81, 2nd number: 30/60
90/81 + 30/60 is 29/18.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 60 is 1620
Next, find the equivalent fraction of both fractional numbers with denominator 1620 - For the 1st fraction, since 81 × 20 = 1620,
90/81 = 90 × 20/81 × 20 = 1800/1620 - Likewise, for the 2nd fraction, since 60 × 27 = 1620,
30/60 = 30 × 27/60 × 27 = 810/1620 - Add the two like fractions:
1800/1620 + 810/1620 = 1800 + 810/1620 = 2610/1620 - 2610/1620 simplified gives 29/18
- So, 90/81 + 30/60 = 29/18
In mixed form: 111/18
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