Add 84/81 and 75/63
1st number: 1 3/81, 2nd number: 1 12/63
84/81 + 75/63 is 421/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 63 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
84/81 = 84 × 7/81 × 7 = 588/567 - Likewise, for the 2nd fraction, since 63 × 9 = 567,
75/63 = 75 × 9/63 × 9 = 675/567 - Add the two like fractions:
588/567 + 675/567 = 588 + 675/567 = 1263/567 - 1263/567 simplified gives 421/189
- So, 84/81 + 75/63 = 421/189
In mixed form: 243/189
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