Final answer:
The fraction of 380 lb of 400 lb is 0.95 or 95%. Using unit conversion, 6,200 pounds is the same as 3.1 tons because 2,000 pounds equals 1 ton. We divide when converting from a smaller to a larger unit.
Step-by-step explanation:
To find what fraction 380 lb is of 400 lb, you would set up a ratio of these two numbers. The fraction is 380 lb divided by 400 lb, which simplifies to:
380 lb / 400 lb = ⅔ or 0.95
This means that 380 lb is 95% of 400 lb.
To further illustrate the concept of converting different units of weight, let's look at another example. If you have 6,200 pounds and want to convert it to tons, you would divide because you are converting from a smaller unit (pounds) to a larger unit (tons). Since 2,000 pounds is equivalent to 1 ton, you divide 6,200 pounds by 2,000 to get:
6,200 pounds / 2,000 = 3.1 tons
The answer is that 6,200 pounds is equivalent to 3.1 tons. Remember that when converting weights, the result can be expressed as a fraction or a decimal.