Verified Answer :

  1. change 11 5/6 to a mixed number:

    71/6-17/18
    multiply 6 and 71 by 3 which equals 18 so now the denominators are the same

    213/18-17/18=196/18
    to simplify divide 196 and 18 by 2

    196÷2=98
      18÷2=9
    now divide 98 by 9

    98÷9=10 (rounded to whole number)
    9×10=90
    so to get 98 you add 8

    your answer is 10 8/9

    66. change both fractions to a mixed number

    9 5/9=86/9
    8 1/6=49/6

    multiply 86 and 9 by 2

    86×2=172
    9×2=18

    multiply 49 and 6 by 3

    49×3=147
    6×3=18
    now subtract :

    172/18-147/18=25/18
    divide 25 by 18

    25÷18=1 (rounded whole number)
    18×1=18
    to get 25 you add 7

    your answer is 1 7/18

    hope this helped

Okay, so first off as you can see, 9 - 8 is 1, so now u have 1 5/9 - 1/6. Now u need to find a common factor between 9 and six, which is 18. Make 5/9 into 10/18 and 1/6 into 3/18. Now u have 1 10/18 - 3/18 which = 1 7/18

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