Penjelasan dengan langkah-langkah:
6. Opsi D. 3 2/3 ÷ 2 1/5 × 1 2/3.
7. Opsi C. 0,075.
8. Opsi A. 0,5.
9. Opsi B. 30.
10. Opsi C. 0,75.
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6. 3 2/3 ÷ 2 1/5 × 1 2/3 =
= 1 2/3 × 1 2/3
= 5/3 × 5/3
= 25/9
= 2 7/9.
_____________________
7. 0,75 × 0,1 =
= 75/100 × 1/10
= 3/4 × 1/10
= 3/40
= 0,075.
_______________
8. 0,65 ÷ 1,3 =
= 65/100 ÷ 1 3/10
= 65/100 ÷ 13/10
= 13/20 ÷ 13/10
= 10/20
= 1/2
= 0,5.
___________________
9. 10 : 0,5 × 1½ =
= 20 × 1 1/2
= 20/1 × 1 1/2
= 20/1 × 3/2
= 60/2
= 30/1
= 30.
__________________
10. 1/2 ÷ 50% × 0,75 =
= 1/2 ÷ 50/100 × 0,75
= 1 × 0,75
= 1/1 × 75/100
= 1/1 × 3/4
= 3/4
= 0,75.
[tex]3 \frac{2}{5} \div 2 \frac{1}{5} \times 1 \frac{2}{3} = 1 \frac{2}{3} \times 1 \frac{2}{3} \\ = \frac{5}{3} \times \frac{5}{3} \\ = \frac{25}{9} \\ = 2 \frac{7}{9} [/tex]
Opsi D.
0,75 × 0,1
= 75/100 × 1/10
= 3/4 × 1/10
= 3/4 atau 0,075
Opsi C.
0,65 : 1,3
= 65/100 : 13/10
= 10/20
= 1/2 atau 0,5
Opsi A
10 : 0,5 × 1 1/2
= 20 × 1 1/2
= 30
Opsi B.
1/2 : 50% × 0,75
= 1/2 : 50/100 × 75/100
= 1 × 75/100
= 3/4 atau 0,75
Opsi C
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