Rationele
Decimaal ;Aan ;3.125 ;= ;3125/1000 ;= ;25/8 ;= ;3 ;+ ;125/1000 ;= ;3 ;+ ;1/8 ;0.00314 ;= ;314/100000 ;= ;157/50000 ;3.141414... ;= ;311/99 ;= ;3 ;+ ;14
r = 3.125 src = " r = 3125/1000= (5*5*5*5*5)/(2*2*2*5*5*5) = (25*125)/(8*125) = 25/8 r = 0.006100 U bent r = 0.0061/1 * 10000/10000 = 61/10000 Hier 20/9 = 2.222222... omdat 20/9 = 2.[2] = 2.222222.... u 1/3 = 0.[3] = 0.3333... 1/6 = 0.1[6] = 0.1666