Question

[Trần Gia Phát]

\(\frac{198\cdot199-200}{198\cdot197-200}\)

Answer 1

[tK_nGáO_nGơ]

=\(\frac{198.199-200}{198.197-200}\)

=\(\frac{1.199-200}{1.197-200}\)

=\(\frac{199-200}{197-200}\)

=\(\frac{-1}{-3}\)