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Video: Converting from Kilograms to Tonnes

Kathryn Kingham

Write in tonnes: 2 650kilograms.


Video Transcript

Write the following in metric tons: 2650 kilograms.

How should we go from kilograms to metric tons? First, we remember that one metric ton is 1000 kilograms. So we’ll take the information that we know: one metric ton equals 1000 kilograms, and we’ll set up a proportion. Because one metric ton is the same weight as 1000 kilograms, this fraction has a value of one.

Now, we’ll multiply 2650 kilograms by the ratio of one metric ton over 1000 kilograms. After we multiply, we’re left with something that looks like this: 2650 over 1000. Reducing this fraction gives us 2.65. You can simplify or reduce this fraction by dividing 2650 by 1000.

There’s still one piece of information that we haven’t dealt with yet; what happened to the units when we did this multiplication? There are kilograms in our numerator and kilograms in our denominator. Those units cancel each other out, which leaves us metric tons. 2650 kilograms equals 2.65 metric tons.