Question

Un mic ajutor va rog

Answer 1

1)a)
3:2=1,5
2
10
10
==

B)
5:3=1,6666=1,(6)
3
20
18
=20
..18
..=20


C)
7:4=1,75
4
30
28
=20
..20
..==


D)
8:25=0,32
0
80
75
=50
...50
....==


2)a)

$1.5 = \frac{15}{10} \div 5 = \frac{3}{2}$
B)
$1.25 = \frac{125}{100} \div 5 = \frac{25}{20} \div 5 = \frac{5}{4}$
C)
$1.(3) = \frac{13 - 1}{9} = \frac{12}{9} \div 3 = \frac{4}{3}$
D)
$1.0(3) = \frac{103 - 10}{90} = \frac{93}{90} \div 3 \\ = \frac{31}{30}$


3)
$\frac{75}{100} \times 300 = 75 \times 3 = 225$