Math

posted by Angela

Solve Mentally with conversion to decimals, no calculation of common denominators. Place the following in ascending order(smallest to largest)

1/4
8/9
7/10
9/21
7/16
2/3
2/47
5/6
3/4
3/5
1/13
1/8

  1. Steve

    do what was suggested. As decimals, you have

    .25 .88 .70 .42 ...

    then sort them as desired.

  2. Ms. Sue

    Can you convert these fractions to decimals?

    http://www.mathsisfun.com/converting-fractions-decimals.html

    http://math2.org/math/general/arithmetic/fradec.htm

  3. Angela

    How would you solve this problem using mental math (no conversion to decimals, no calculations of common denominators)in ascending order. Explain how you placed each one

    1/4
    8/9
    7/10
    9/21
    7/16
    2/3
    2/47
    5/6
    3/4
    3/5
    1/13
    1/8

  4. Steve

    Hmmm. Originally it said to use conversion to decimals. Now you say no conversion and no common denominators. Unless you have a really good feel for relative values of fractions, I don't see any tricks to use to sort such a list.

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