Question

Prove the sum of two rational numbers is rational where a, b, c, and d are integers and b and d cannot be zero.


Steps Reasons

1. a over b plus c over d Given
2. ad over bd plus cb over bd
3. ad plus cb all over bd Simplify


Fill in the missing reason in the proof.
1. Multiply to get a common denominator.
2. Add to get a common denominator.
3. Distribute d to all terms.
4. Add d to all terms.

Answer 1

Answer:

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