10 -2/5 kali 12,5 = desimal pakai cara
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[tex]10 - \frac{2}{5} \times 12.5[/tex]
[tex] = 10 - \frac{2}{5} \times ( \frac{25}{2} )[/tex]
[tex] = 10 - \frac{2 \times 25}{5 \times 2} [/tex]
[tex] = 10 - \frac{50}{10} [/tex]
[tex] = 10 - \frac{25}{5} [/tex]
[tex] = 10 - 5[/tex]
[tex] = 5[/tex]
Kesimpulan desimal nya adalah : 5
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