4 feet, 8 inches + 6 feet, 10 inches = how many inches?

138 inches

Explanation

The first step in solving this problem is to convert all the numbers to the same standard of measure. If you convert the inches to feet, 8 inches + 10 inches = 18 inches. Since 12 inches = 1 foot, then 18 inches converts to: 1 foot, 6 inches = 4 feet + 6 feet + 1 foot + 6 inches = 11 feet, 6 inches = 132 inches + 6 inches = 138 inches

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