(2 1/8 - 1 3/4) : (3 5/6 - 4 1/4) = . . . .

a. 10/9
b. 9/10
c. -9/10
d. -10/9

Tolong sekalian jalannya yaa..

(2 1/8 – 1 3/4) : (3 5/6 – 4 1/4) = . . . .

Jawaban:

C. -9/10

Penjelasan dengan langkah-langkah:

(2 1/8 – 1 3/4) : ( 3 5/6 – 4 1/4)

=(17/8 – 7/4 ) : ( 23/6 – 17/4)

= (17-14/8) : (46-51/12)

= 3/8 : -5/12

= 3/8 x – 12/5

= -36/40

= -9/10

Jawaban:

C. -9/10

$= (2 frac{1}{8} - 1 frac{3}{4} ) div (3 frac{5}{6} - 4 frac{1}{4})$

$= (frac{17}{8} - frac{7}{4} ) div ( frac{23}{6} - frac{17}{4} )$

$= (frac{17}{8} - frac{14}{8}) div ( frac{46}{12} - frac{51}{12} )$

$= frac{3}{8} div ( - frac{5}{12} )$

$= frac{3}{8} times ( - frac{12}{5} )$

$= - frac{36}{40}$

$= - frac{9}{10}$