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David
Lv 4
David asked in Science & MathematicsMathematics · 1 decade ago

Can someone please show me firstly how to simplify and show the working out for the following question please?

Someone bought a piece of string measuring 24 inches long , they cut off two pieces both 5 and 5 eighths long , how long was the piece left ??? we know the answer will be 17 and three quarters , but not sure of how to simplify PLEASE HELP

2 Answers

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  • 1 decade ago
    Favorite Answer

    (5 5/8 X 2) = 11 1/4...

    24 - 11 1/4 = 12 3/4

    Or had you something different in mind?

  • 1 decade ago

    24 - (5+(5/8)) - (5+(5/8))

    = 24 - ((40/8)+(5/8)) - ((40/8)+(5/8))

    = 24 - ((40+5)/8) - ((40+5)/8)

    = (192/8) - (45/8) - (45/8)

    = (192 - 45 - 45) / 8

    = 102 / 8

    = 12.75

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