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-2/9, -0.9, -1.7, -4/7 Of the number listed above, which number is the greatest?

A. -0.9

B. -4/7

C. -1.7

D. -2/9

Answer Explanation:

The initial step is to convert the decimal options to fractions. Then, we find the LCM of the denominators of all fractions, which will be used to compare the values of the given options.

-0. becomes -9/10

-1.7 becomes -17/10

Then, the resulting denominators are 9, 10, and 63. Their LCM of 630 is used to multiply each fraction.

-2/9*630=-140

-9/10*630=-567

-17/10*630=-1071

-4/7*630=-360

From the calculations above, -140 is the greatest value of all the values. Thus, -2/9 is the greatest number.

Therefore, the Correct Answer is D.

More Questions on TEAS 7 Math

  • Q #1: A baker is using a cookie recipe that calls for 3 ¼ cups of flour to yield 64 cookies. How much flour will the baker need to make 130 cookies using the same recipe?

    A. 6 77/128 cups

    B. 5 5/128 cups

    C. 10 1/28 cups

    D. 4 81/128 cups

    Answer Explanation

    we are asked to find the number of cups of flour that will be used to make 130 cookies.

    First, we convert 3 ¼ into improper fraction as:

    Letting x to be the number of cups of flour, we set up a proportion equation with number of cookies on numerator and number of cups of flour on the denominator becomes:

    Solve the value of x by cross-products

    Dividing both sides by 64, the above equation result to

    Thus, the number of cups of flour needed to make 130 cookies is 845/128 cups, which is equal to 6 77/128 cups.

  • Q #2: A recipe calls for 5/7 cup of flour for every 2 3/5 cup of milk. To make a bigger batch, the chef uses 3 cups of flour. Which of the following would be the amount of milk needed for the bigger batch?

    A. 12 1/5 cups

    B. 12 2/5 cups

    C. 8 9/25 cups

    D. 10 23/25 cups

    Answer Explanation

    To find the required number of cups milk needed, we set a proportion equation with number of cups be numerator and cups of milk as denominator.

    Let x be the number of cups of milk needed, then

    The numbers of cups of milk required is 273/25, which when converted to mixed fraction becomes 10 23/25.

  • Q #3: A person weighed themselves at 160 lb. Three months later they weighed themselves at 130 lb. Which of the following is the percent of weight the person lost over 3 months? (Round to the nearest percent.)

    A. 20%

    B. 13%

    C. 19%

    D. 29%

    Answer Explanation

     the percentage change in weight is found by calculating change in weight over original multiplied by 100%.

    First, find the change in weight over the 3 months

    Change in weight lost= 1860-130=30 lb

    Thus

    The percent change in weight is 19% to the nearest whole number.