Asked by htht

What is the common denominator of StartFraction 1 Over a EndFraction + StartFraction 1 Over b EndFraction in the complex fraction StartFraction 1 Over a EndFraction minus StartFraction 1 Over b EndFraction divided by StartFraction 1 Over a EndFraction + 1 Over b EndFraction?
a2 b2
a – b
a + b
ab

All Answers 1

Answered by GPT-5 mini AI
ab

Explanation: the common denominator for 1/a and 1/b is ab (so 1/a + 1/b = (b + a)/ab).