Tolong di bantu ya.. jgn ngasal !​

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Tolong di bantu ya.. jgn ngasal !​

Tolong di bantu ya.. jgn ngasal !​

Penjelasan dengan langkah-langkah:

1. Tentukan :

~Selesaikan Operasi pembagian dan perkalian dahulu~

a. – 6 + 6 : 2 – ((-3) x 3)

= – 6 : 3 – (-9)

= -2 -(-9)

= -2+9

= 7

b. 12 + (-16 : 2) + (-3) x (-5)

= 12 + (-8) + (15)

= 12 – 8 + 15

= 19

c. – 20 + 15 : (-3) – (- 5 x 6 )

= -20 + (-5) – (-30)

= -20 – 5 + 30

= -25 + 30

= 5

d. 525 : (-5) + 6 – 8 x 15

= – 105 + 6 – 120

= – 99 – 120

= – 219

2. Tentukan :

a. : frac{1}{3} + frac{1}{4}

= frac{1 times 4}{3 times 4} + frac{1 times 3}{4 times 3}

= frac{4}{12} + frac{3}{12}

= frac{4 + 3}{12}

= frac{7}{12}

b. : - frac{5}{9} - 3 frac{2}{3}

= - frac{5}{9} - frac{11}{3}

= - frac{5 times 1}{ 9 times 1} - frac{11 times 3}{3 times 3}

= - frac{5}{9} - frac{33}{9}

= - frac{38}{9}

= - 4 frac{2}{9}

c. : frac{3}{2} times frac{5}{6}

= frac{3 times 5}{2 times 6}

= frac{15}{12}

= frac{15 div 3}{12 div 3}

= frac{5}{4}

d. : - 2 frac{1}{6} div frac{1}{3}

= - frac{13}{6} div frac{1}{3}

= - frac{13}{6} times frac{3}{1}

= - frac{13 times 3}{6 times 1}

= - frac{39}{6}

= - frac{39 div 3}{6 div 3}

= - frac{13}{2}