Question

2-3-4-5-6 va rog frumos

Answer 1

2) 1,4
3)a=4,12
b=37/9=4,(1)

a>b
4)3 intregi si 1/5=(3•5+1)/5=9/5=1,8
1,8+x=53/7
1,8+x=7,57
x=7,57-1,8=5,77
deci 53/7 este mai mare decat 3 intregi si 1/5 cu 5,77

5)a•b=9/5
c=20/27
a•b•c=9/5•20/7=(4•9)/7=36/7

6)a) =7/2-1/2+4/3-1/3=6/2+3/3=3+1=4

b)
=3/14•(7/3+10/3•21/10)=3/14(7/3+7)=3/14•28/3=2

c)=3:(11/4-43/28)+2/3•2/3=3:(77-43)/28+4/9=
=3:34/28+4/9=3•28/34+4/9=3•14/17+4/9=42/17+4/9=(378+68)/153=446/153


la 6 am scris direct rezolvarea fara sa mai copiez exercitiul