Add 63/3 and 90/81
1st number: 21 0/3, 2nd number: 1 9/81
63/3 + 90/81 is 199/9.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 81 is 81
Next, find the equivalent fraction of both fractional numbers with denominator 81 - For the 1st fraction, since 3 × 27 = 81,
63/3 = 63 × 27/3 × 27 = 1701/81 - Likewise, for the 2nd fraction, since 81 × 1 = 81,
90/81 = 90 × 1/81 × 1 = 90/81 - Add the two like fractions:
1701/81 + 90/81 = 1701 + 90/81 = 1791/81 - 1791/81 simplified gives 199/9
- So, 63/3 + 90/81 = 199/9
In mixed form: 221/9
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