Question

ex 6. Va dau coroana plus. 20puncte răspuns rapid

Answer 1

A) 5,7=57/10 ;8,25=825/100 ;3,137=3137/100 ; 23,23=2323/100 ; 405,08=40508/10000 ; 0,007=7/100 ; 93,308=93308/1000 ; 4,0258=40258/10000; B) 9,(5)=95/9=9×9+5/9=86/9 ;0,(6)=0 6/9=0×9+6=6/9 ; 8(21)=821/99=8×99+21/99=813/99 ; 13(51)=1351/99=13×99+51/99=1339/99 ; 49(237)=49237/999=49×999+237%49188/999 ; C) 4,2(3)=423-42/990=381/990 ; 5,13(8)=5138-13/900=5116/900=900×5+116=4616/900 ; 9,6(71)=9671-6/990=9675/990=990×9+665/990=9575/990 ; 11,56(23)=11,5623-56/9900=115567/9900=11×9900+5567=114467/9900 ; 109 3(405)=1993405-3/9000=1993402/9000=199×9000+3402=1794402/9000