1(.3/7)²=9/49
(1/5)³=1/125
(8/9)¹=8/9
(11/9)ⁿ(sau0)=1
2/3+(1/2)²=(4)2/3+(3)1/4=8/12+3/12=(2)10/12=5/6
(1/10)³+(1/2)³•1/25=1/1000+1/8•1/25=1/1000+8/1:1/25=1/1000+8/25=(4)8/40=(2)2/10=1/5
(2/5)²•10-7/15=4/25•10/1-7/15=25/4:10/1-7/15=(continui in 10 minute) am putina treaba , promit
