Loko u lava ku tiva leswaku ku leha kwihi ehansi ka ku hundzuka eka swikalo swo hambana, ringeta leswi, .xitirhisiwa xo hundzula ku leha ka xikalo, yi hi pfuna ku hlayela ku leha hi ku hatlisa.
Xikalo lexi xi hi pfuna ku kuma xikalo xa xikalo exikarhi ka ku leha kambirhi, ntsena nghenisa ku leha kambirhi, xi ta hlayela hi ku tisungulela xikalo xa xikalo, xi seketela tiyuniti to hambana ta ku leha (mm, cm, m, km, in, ft, yd, mi), ku engetela ku fambelana xifaniso xa xivono na fomula, ku twisisa hi ku olova endlelo ra xibalo na mbuyelo.
Eka swifaniso swimbirhi leswi fanaka swa geometri, xikalo xa xikalo i mpimo wa matlhelo ya wona lama fambelanaka, ku avanyisa ku leha ka matlhelo kambirhi loku fambelanaka swi ta nyika mpimo, xikombiso
4 na 10 swi avanyisiwa hi 2
Ku leha ka A : 4 ÷ 2 = 2
Ku leha ka B : 10 ÷ 2 = 5
hikwalaho xikalo xa xikalo ku suka eka A ku ya eka B i 2:5
12 na 3 swi avanyisiwa hi 3
12 ÷ 3 = 4. Xitsonga
3 ÷ 3 = 1. Xitsonga
12:3 ratio leyi olovisiweke i 4:1
hikwalaho xikalo xa 12 wa tisentimitara ku ya eka 3 wa tisentimitara i 4:1
1⁄4 in = 1 ÷ 4 = 0.25 in
2 ft = 12 × 2 = 24 wa timitara
1 ÷ 0.25 = 4. Xihlamusela-marito
24 × 4 = 96. 10.
0.25:24 ratio leyi olovisiweke i 1:96
hikwalaho xikalo xa 1⁄4 wa tisentimitara ku ya eka 2 wa timitara i 1:96