Question

7. Efectuează:
a) 3,(3)-0,6=
b) 4,(6):1,16) =
c) 0,(15)-3,(6)=
d) [3,(6) +0,(3)]:0,25 = 6
e) [1,2+3,(3)]:5,(6) =
f) 1,8(3):0,(18) +1,(6) =
g) [1,3:1,(4) +0,15]:1,75 =
h) [0,41(6):4,8-1,(6)]:3=
Stiti sa faceti exercitiul 7 va rooggg din suuuufleeeet dau coroana inima si steluțe

Answer 1

Răspuns:

a)(33-3)/9-6/10=30/9³-6/10²=⁵10/3-³3/5=(50-9)/15=41/15

b)42/9÷106/90=42/9×90/106=210/53

c)15/99³-33/9³=5/33-¹¹11/3=5/33-121/33=-116/33

d)(33/9+3/9)÷25/100⁵=36/9÷5/20⁵=4÷1/5=4×5/1=20

e)(12/10²+30/9³)÷51/9³=(³6/5+⁵10/3)÷17/3=

=(18/15+50/15)÷17/3=68/15×3/17=4/5

f)165/90÷18/99+15/9³=165/90×99/18+⁴5/3=

=121/12+20/12=141/12³=47/4

g)(13/10÷13/9+15/100⁵)÷175/100⁵=

=(13/10×9/13+3/20)÷35/20⁵=(²9/10+3/20)÷7/4=

=(18/20+3/20)÷7/4=21/20×4/7=3/5

h)(375/9÷48/10-15/9³)÷3=(375/9³×10/48-5/3)÷3

=(125/3×10/48-5/3)÷3=(1250/144-⁴⁸5/3)÷3=

=(1250/144-245/144)÷3=1005/144×1/3=

=335/144