Natalie sawed five boards of equal length to make a stool. Each was 9 tenths of a meter long. What is the total length of the boards she saw

Question

Natalie sawed five boards of equal length to make a stool. Each was 9 tenths of a meter long. What is the total length of the boards she sawed? Express your answer as the sum of a whole number and the remaining fractional units.

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Eliza 2 days 2021-10-12T06:27:36+00:00 1 Answer 0

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    2021-10-12T06:28:45+00:00

    Answer:

    total length= 4  ¹/₂ meters

    Step-by-step explanation:

    If each board had 9/10 of a meter long (0,9 m or 90 cm long) , the total length of the boards was the sum of all each board’s length, that is 5 times 9/10 of a meter. Mathematically

    total length = 5 boards * 9/10 meters/board = 5*9/10 meters = 45/10 meters

    45/10 meters can be simplified dividing by the common factor 5

    45/10 = (9*5)/(2*5) = 9/2

    then dividing 9 over 2 → equals 4 with rest = 1 (that is 9 = 4*2 +1)

    therefore

    9/2 = 4  ¹/₂ , 4=result of division , 1= rest , 2=denominator of the fraction

    total length=9/2  meters = 4  ¹/₂ meters

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