Ngati mukufuna kudziwa kutalika kwa kutembenuka pamasikelo osiyanasiyana, yesani izi,sikelo kutalika kutembenuka chida, imatithandiza kuwerengera kutalika kwake mofulumira.
Chowerengera ichi chimatithandiza kupeza kukula pakati pa utali wake, kungolowetsamo utali wake, imangowerengera kuchuluka kwake, imathandizira mayunitsi osiyanasiyana (mm, cm, m, km, in, ft, yd, mi), kuphatikiza zofananira. zojambulajambula ndi chilinganizo, kumvetsetsa kosavuta kuwerengera ndi zotsatira zake.
Mu ziwerengero ziwiri zofanana za geometric, kukula kwake ndi chiŵerengero cha mbali zawo zofananira, kugawa mbali ziwiri zofanana za mbalizo zimapereka chiŵerengero, mwachitsanzo.
4 ndi 10 amagawidwa ndi 2
Utali A: 4 ÷ 2 = 2
Utali B: 10 ÷ 2 = 5
kotero kuti sikelo yochokera ku A mpaka B ndi 2:5
12 ndi 3 amagawidwa ndi 3
12 ndi 3 = 4
3 ndi 3 = 1
12:3 chiŵerengero chophweka ndi 4:1
kotero kuchuluka kwa mainchesi 12 mpaka mainchesi atatu ndi 4: 1
1⁄4 mu = 1 ÷ 4 = 0.25 mkati
2 ft = 12 × 2 = 24 mkati
1 ndi 0.25 = 4
24 × 4 = 96
0.25:24 chiŵerengero chosavuta ndi 1:96
kotero sikelo ya mainchesi 1⁄4 kufika pa mapazi awiri ndi 1:96