Question

2点5×19又7/19×1点二五×0点4×0点八怎么算

2点5×19又7/19×1点二五×0点4×0点八怎么算

Answer 1

2.5*19又7/19*1.25*0.4*0.8
=(2.5*0.4)*(1.25*0.8)*19又7/19
=1*1*19又7/19
=19又7/19

Answer 2

=5/2*368/19*5/4*2/5*4/5
=368/19