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Math Question

Please explain this....?
Using the entire width of the board, a carpenter cuts three pieces of stock of different widths from one board. The first is 2 1/4 inches, the second is 3 5/16 inches and the third is 4 1/4 inches wide. If 1/8 inch is allowed for each saw kerf, find the width of the board used......The answer is supposed to be 10 1/16.......I keep getting 10 1/3 and hubby got 10 3/16 Can someone explain the steps we are missing in the process to reach the books answer of 10 1/16

 
Tygermommanikki

Asked by Tygermommanikki at 5:51 PM on May. 2, 2009 in Hobbies & Crafts

Level 2 (6 Credits)
This question is closed.
Answers (3)
  • Thank you very much for responding and I now see I read the question incorrectly and assumed three boards = three cuts.....ahhh blond moments!!
    Tygermommanikki

    Answer by Tygermommanikki at 6:44 PM on May. 2, 2009

  • add all the numbers up (find the common denominator on the fractions)( Totaling 9 13/16 ), then add 1/8 & 1/8 (9 13/16 + 4/16) For the saw kerf. He will make 2 cuts to get 3 pieces....
    ZaTa

    Answer by ZaTa at 5:59 PM on May. 2, 2009

  • The first board that was 2 1/4 becomes 2 4/16.

    The second bourd that was 3 5/16 stays the same.

    The third board that was was 4 1/4 beomes 4 4/16.

    The saw kerf- the board was but into three peices but only two cuts were made (2/16 and 2/16).

    It adds to 9 17/16... so 10 1/16
    Crystal1124

    Answer by Crystal1124 at 6:03 PM on May. 2, 2009

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