correct answer is: a) KaTeX parse error: KaTeX doesn't work in quirks mode.

Explanation

Here, Product of two fractions is KaTeX parse error: KaTeX doesn't work in quirks mode.
And, their LCM be KaTeX parse error: KaTeX doesn't work in quirks mode. or KaTeX parse error: KaTeX doesn't work in quirks mode.
We know,
LCM KaTeX parse error: KaTeX doesn't work in quirks mode. HCF KaTeX parse error: KaTeX doesn't work in quirks mode. Product of Two Numbers
KaTeX parse error: KaTeX doesn't work in quirks mode. HCF KaTeX parse error: KaTeX doesn't work in quirks mode.
KaTeX parse error: KaTeX doesn't work in quirks mode. HCF KaTeX parse error: KaTeX doesn't work in quirks mode.
KaTeX parse error: KaTeX doesn't work in quirks mode. HCF KaTeX parse error: KaTeX doesn't work in quirks mode.
KaTeX parse error: KaTeX doesn't work in quirks mode. HCF KaTeX parse error: KaTeX doesn't work in quirks mode.
KaTeX parse error: KaTeX doesn't work in quirks mode. Their HCF is KaTeX parse error: KaTeX doesn't work in quirks mode.
Ans: HCF KaTeX parse error: KaTeX doesn't work in quirks mode.

Other variants of this math particular question are:

1. Finding the highest common factor of fractions resulting in 27/98 when multiplied, given their LCM as 1 2/7.
2. What is the greatest common factor of two fractions whose multiplication yields 27/98, and their least common multiple is 1 2/7?
3. Find the greatest common divisor of two fractions resulting in 27/98 when multiplied, given their least common multiple as 1 2/7.