Question

What is 24 karat gold? How can you convert it into 18karat gold

Answer 1

24 karat gold means that it is the purest form of gold or having funess of 1000
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and we use karat as a unit to measure the purity of gold

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while 18 karat gold is a alloy which has 18 parts of gold and 6 parts of other metal ( usually copper or silver)

usually altering gold's karat is by adding pure gold in case you want increases the karat or mix it with other metal ( usually copper or silver)in case you want to decrease the karat
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now to convert 24k into 18k

suppose you have 1 gram of 24k gold and you want to convert it into 18k

then mix 1 gram of 24k gold with 0.33 gram of other metal ( usually copper or silver)

the result will be 1.33 gram of 18k gold

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hope this helps you