求(49又48/49)*98和(-105-5/6)*12的计算过程,

问题描述:

求(49又48/49)*98和(-105-5/6)*12的计算过程,

(49又48/49)*98
=49*98+48*2
=49*98+98
=(49+1)*98
=50*98
=490
(-105-5/6)*12
=-105*12-10
=-1200-60-10
=-1270