Question

[Nguyen TRa Nhi]

hay cho biet co bao nhieu so thap phan ma co 1 chu so o phan thap phan ma lon hon 1981 va nho hon 1982.

co tat ca

Answer 1

[Phong Linh]

(1981 x 1982 - 990) : (1980 x 1982 + 992)

=(1980 x 1982+1982 -990) : (1980 x 1982 +992)

=(1980 x 1982 + 992) : ( 1980 x 1982 + 992)

=1