Question

Ajutor va rog!!!!! Dau coroana!!!​

Answer 1

b)
((1/3+2/21):(1/18+1/14)-2intregi1/2)•8=
(3/7:8/63-5/2)•8=
(3/7•63/8-5/2)•8=
(3•9/8-5/2)•8=
(27/8:5/2)•8=
7/8•8=
=7



D)
(3+3/8):(4/35-2/70•7/4)•4/15=
27/8:(4/35-1/35•7/4)•4/15=
27/2:(4/35-1/5•1/4)•1/15=
27/2:(4/35-1/20)•1/15=
27/2:9/140•1/15=
27/2•140/9•1/15=
3/2•28•1/3=
=14


Coroana?