Add 20/81 and 9/7
1st number: 20/81, 2nd number: 1 2/7
20/81 + 9/7 is 869/567.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 81 and 7 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 81 × 7 = 567,
20/81 = 20 × 7/81 × 7 = 140/567 - Likewise, for the 2nd fraction, since 7 × 81 = 567,
9/7 = 9 × 81/7 × 81 = 729/567 - Add the two like fractions:
140/567 + 729/567 = 140 + 729/567 = 869/567 - So, 20/81 + 9/7 = 869/567
In mixed form: 1302/567
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