(1)
(382+498x381)/(382x498-116)
=[382+498x(382-1)]/(382x498-116)
=(382+498x382-498)/(382x498-116)
=(498x382-116)/(382x498-116)
=1
(2)原式
=2003/2004×(2004+1)
=2003/2004×2004+2003/2004
=2003+2003/2004
=2003又2004分之2003
(1)
(382+498x381)/(382x498-116)
=[382+498x(382-1)]/(382x498-116)
=(382+498x382-498)/(382x498-116)
=(498x382-116)/(382x498-116)
=1
(2)原式
=2003/2004×(2004+1)
=2003/2004×2004+2003/2004
=2003+2003/2004
=2003又2004分之2003