1. 10.3 :3.1 = - Universityku

2. 21.3 : 1.2 : 1.1 =
3. 15: 21,2 : 1 1/2 =
4. 20 : 1 1/3 : 2.3 =

berapa hasilnya pke cara ya kak

1. 10.3 :3.1 =

Jawab:

1) 10.3:3.1 =

$=frac{103}{10}:frac{31}{10}\\ = frac{103}{10}xfrac{10}{31}\\ = frac{103}{31} = 3frac{10}{31} = 3,323$

2) 21.3:1.2:1.1=

$=frac{213}{10}:frac{12}{10}:frac{11}{10}\ \ =frac{213}{10}xfrac{10}{12}xfrac{10}{11}\ \= frac{213x10}{12x11} = frac{2130}{132}\ \ =16 frac{18}{132}==16 frac{3}{22} = 16,136$

3)15: 21,2 : 1 1/2 =

$=15: frac{212}{10} : frac{11}{2}\ \ =15 x frac{10}{212} x frac{2}{11}\ \ =frac{15x10x2}{212x11}=frac{300}{2332}\ \ =frac{75}{583}= 0,129$

4. 20 : 1 1/3 : 2.3 =

$=20: frac{11}{3} : frac{23}{10}\ \ =20 x frac{3}{11} x frac{10}{23}\ \ =frac{20x3x10}{11x23}=frac{600}{253}\ \ =2frac{94}{253}= 2,372$