<prompt> Je, ni uwiano gani wa eneo la mraba wenye kivuli na eneo la mraba mkubwa? Takwimu imechorwa kwa mizani. asy AMC8 1998 13P ukubwa inchi 1, inchi 1;jozi r1c10,0, r1c210,0, r1c320,0, r1c430, 0, r1c540, 0;jozi r2c10,10, r2c210,10, r2c320,10, r2c430, 10, r2c540, 10;jozi r3c10,20, r3c210,20, r3c320,20, r3c430, 20, r3c540, 20;jozi r4c10,30, r4c210,30, r4c320,30, r4c430, 30, r4c540, 30;jozi r5c10,40, r5c210,40, r5c320,40, r5c430, 40, r5c540, 40;kuchorar1c1--r5c1--r5c5--r1c5--r1c1--r5c5;kuchorar5c1--r3c3;kuchorar4c4--r2c4--r3c5;kujaza r2c2--r3c3--r2c4--r1c3--mzunguko;asy  <response>: Gawa mraba katika miraba midogo ya 16 kama inavyoonyeshwa. Mraba wenye kivuli umeundwa kutoka 4 nusu ya mraba, kwa hivyo eneo lake ni 2. Uwiano wa 2 hadi 16 ni frac18.Kumbuka: Kuna njia zingine kadhaa za kugawa eneo ili kuonyesha hii. asy AMC8 1998 13S ukubwa inchi 1, inchi 1;jozi r1c10,0, r1c210,0, r1c320,0, r1c430, 0, r1c540, 0;jozi r2c10,10, r2c210,10, r2c320,10, r2c430, 10, r2c540, 10;jozi r3c10,20, r3c210,20, r3c320,20, r3c430, 20, r3c540, 20;jozi r4c10,30, r4c210,30, r4c320,30, r4c430, 30, r4c540, 30;jozi r5c10,40, r5c210,40, r5c320,40, r5c430, 40, r5c540, 40;kuchorar1c1--r5c1--r5c5--r1c5--r1c1--r5c5;kuchorar5c1--r3c3;kuchorar4c4--r2c4--r3c5;kujaza r2c2--r3c3--r2c4--r1c3--mzunguko;kuchorar2c1--r2c5;kuchorar3c1--r3c5;kuchorar4c1--r4c5;kuchorar1c2--r5c2;kuchorar1c3--r5c3;kuchorar1c4--r5c4;asy 