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The d- prefix is deci- which means 1/10

1 kg = 1000 g

→ 1 g = 1/1000 kg

→ 1 dg = 1/10 g = 1/10 × 1/1000 kg = 1/10000 kg

→ 20 dg/ 1 kg = (20 × 1/10000) kg / 1 kg

= 20/10000

= 1/500

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6y ago
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Wiki User

6y ago

It is 1/5.

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Q: What fraction of 1 kg is 20dg?
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