Two tables are 5 ft 3 in long and 3 ft 10 in long. If the two tables are placed end to end, what

step 1 We are working with a table that has related dimensions. The width of the table, we're going to

Two tables are 5 ft 3 in long and 3 ft 10 in long. If the...

Two tables are $5 \mathrm{ft} 3$ in long and $3 \mathrm{ft} 10$ in long.
If the two tables are placed end to end, what is their combined length?
26. What is the difference in length between the two tables?

Key Concepts

Subtraction of Mixed Measurements

Subtraction of mixed measurements involves comparing the components of the measurement separately, typically subtracting the smaller measurement's feet and inches from the larger’s. Care must be taken when the inches in the subtrahend exceed those in the minuend, in which case a borrow from the feet is performed, and the inches are adjusted accordingly.

Addition of Mixed Measurements

When dealing with the addition of mixed measurements, each unit is added separately. Feet are summed with feet and inches with inches, after which any total inches equal to or greater than 12 are converted to additional feet. This ensures the final result is expressed in a conventional mixed unit format.

Compound Unit Arithmetic

Compound unit arithmetic involves performing operations like addition or subtraction on measurements that consist of more than one unit, such as feet and inches. It requires managing each part of the measurement separately, while also transferring excess amounts if necessary (for example, converting inches to feet when the inches portion exceeds 11).

Unit Conversion

Unit conversion is the process of converting a quantity expressed in one unit of measurement to another unit. In the context of measurements involving feet and inches, it often involves converting inches to feet (knowing that 12 inches equals 1 foot) to facilitate arithmetic operations or to express the final answer in a standard format.

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