Question

scrie sub formă de fractie ireductibilă:2,045×10=.....;1,(2)=...;1,1(2)=...

Answer 1

2,045 × 10 = 

= 20,45

= 2045/100

= 409/20


1,(2) = 

= (12 - 1)/9

= 11/9



1,1(2) = 

= (112 - 11)

= 101/90

Answer 2

2,045 x10=
2045/1000 x10= 2045/100=simplific cu 5= 409/20
1,(2)= 1intreg 2/9=(9x1+2)/9=11/9
1,1(2)= 1intreg(12-1)/90= 1intreg 11/90= (90x1+11)/90= 101/90