Question

Transformati urmatoarele fractii zecimale in fractii ordinare :
 a)1,23
b)34,5678=
c)1,(3)=
d)15,(72)=
e) 10, (234)=
f)1,2(3)=
g) 0,12(34)=
h) 2,3 (45)=
i)5,01(02)=
j) 13,14 (15)=

Answer 1

$a) 1,23=\frac{123}{100}$

$b) 34,5678 = \frac{345678}{10000}$

$c) 1,(3)=\frac{13-1}{9} = \frac{12}{9}$

$d) 15,(72) = \frac{1572-15}{99} = \frac{1557}{99}$

$e) 10,(234) = \frac{10234-10}{999} =\frac{10224}{999}$

$f) 1,2(3) = \frac{123-12}{90}=\frac{111}{90}$

$g) 0,12(34) =\frac{1234-12}{9900}= \frac{1222}{9900}$

$h) 2,3(45) = \frac{2345-23}{990}=\frac{2322}{990}$

$i) 5,01(02) = \frac{50102-501}{9900}=\frac{49601}{9900}$

$j) 13,14(15) = \frac{131415-1314}{9900}=\frac{130101}{9900}$