Add the following weights:

20 lb 5 oz + 21 lb 8 oz + 21 lb 8 oz

To add the weights \( 20 \text{ lb } 5 \text{ oz} \), \( 21 \text{ lb } 8 \text{ oz} \), and \( 21 \text{ lb } 8 \text{ oz} \), let's break the problem down into two parts: pounds and ounces separately.

### 1. Add the Pounds:
- \( 20 \text{ lb} + 21 \text{ lb} + 21 \text{ lb} = 62 \text{ lb} \)

### 2. Add the Ounces:
- \( 5 \text{ oz} + 8 \text{ oz} + 8 \text{ oz} = 21 \text{ oz} \)

Since there are 16 ounces in a pound, convert the 21 ounces into pounds and ounces:
- \( 21 \text{ oz} = 1 \text{ lb } 5 \text{ oz} \)

### 3. Combine the Pounds:
Now, add the extra 1 pound to the total pounds:
- \( 62 \text{ lb} + 1 \text{ lb} = 63 \text{ lb} \)

So, the total weight is **63 lb 5 oz**.

Would you like more details on the process or any further clarification?

Here are 5 related questions:
1. How do you subtract weights that include pounds and ounces?
2. What is the formula for converting ounces to pounds?
3. How do you handle weights when converting to metric units like kilograms?
4. How can you add weights in a scenario involving multiple items?
5. What is the significance of understanding weight conversions in cooking or baking?

**Tip:** When dealing with pounds and ounces, remember that 16 ounces equal 1 pound. Always convert excess ounces to pounds to simplify your calculations.

Learn how to add weights expressed in pounds and ounces: 20 lb 5 oz, 21 lb 8 oz, and 21 lb 8 oz. This problem involves converting ounces to pounds, adding pounds separately, and then combining the results. Suitable for students in Grades 5-7.

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