math

A railing for a deck requires pieces of redwood 4 ft 9 in, 13 ft 9 in, and 4 ft 3 in long.

What is the total length of material that is needed?

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  1. 4 ft 9 in
    13 ft 9 in
    4 ft 3 in

    Gives
    21 ft 21 in
    Since 12 inches make a foot,
    21 in - 12 in = 9 in
    Add another ft and keep the remaining inches

    The total length needed is:
    22 ft 9 in

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