Помогите (2.19×(-5,4)):(-2.19)-(-1,25×0.7×(-8)):(-1.9)-(0.21:(-0.1))

Question

Помогите
(2.19×(-5,4)):(-2.19)-(-1,25×0.7×(-8)):(-1.9)-(0.21:(-0.1))

Answer 1

(2.19×(-5,4)):(-2.19)-(-1,25×0.7×(-8)):(-1.9)-(0.21:(-0.1))=

=(-11.826):(-2.19)-7:(-1.9)-(-2.1)=

=5.4+7:(19\10)+2.1=

=5.4+7*(10\19)+2.1=

=5.4+(70\19)+2.1=

=7.5+(70\19)=

=(75\10)+(70\19)=

=(15\2)+(70\19)=

=(285+140)\38=425\38= 11(7\38)