Decimals with Fractions - PSAT Math

Card 0 of 8

Question

Which of the following numbers is between 1/5 and 1/6?

Answer

Long division shows that 1/5 = 0.20 and 1/6 = 0.16666... 0.13 < 0.16 < 1/6 < 0.19 < 1/5 < 0.22 < 0.25.

Compare your answer with the correct one above

Question

Trevor, James, and Will were each given a candy bar. Trevor ate 7/12 of his and Will ate 20% of his. If James ate more than Will and less than Trevor, what amount could James have eaten?

Answer

Turn Trevor and Will’s amounts into decimals to compare: 20% = 0.20 and 7/12 = 0.5083 rounded. When the answer choices are converted into decimals, 2/7 = 0.2871 is the only value between 0.20 and 0.5083.

Compare your answer with the correct one above

Question

The ogre under the bridge eats of a pizza and then throws the rest of the pizza to the rats. The rats eat of what is left. What fraction of the pizza is left when the rats are done?

Answer

1/5 of the pizza is left after the ogre eats his share. The rats eat 3/4 of that, so 1/4 of 1/5 of the pizza is left.

1/4 * 1/5 = 1/20 = 5%

Compare your answer with the correct one above

Question

Answer

Multiply numerator by the other numerator and multiply the denominator by the other denominator for multiplication. To divide fractions, switch numerator and denominator and treat it as multiplication. The answer is 0.07.

Compare your answer with the correct one above

Question

How much less is than ?

Answer

\frac{1}{16}=.0625

.0665-.0625=.004=\frac{4}{1000}=\frac{1}{250}

Compare your answer with the correct one above

Question

Express as a decimal:

Answer

Divide 16 by 9:

Division

The "7" repeats forever, so

Compare your answer with the correct one above

Question

Express as a decimal:

Answer

Divide 9 by 16:

Division

Compare your answer with the correct one above

Question

Convert the fraction to a decimal.

Answer

We can multiply our numerator and denominator by , which leads to . From here we divide by our denominator, moving the decimal two places to the left.

Compare your answer with the correct one above

Tap the card to reveal the answer