Practice Math TEAS TEST

Correct Answer: A

Rationale: The correct answer is A: A shared multiple of two denominators. In order to add or subtract fractions, they must have a common denominator. This means they need to have the same bottom number. By finding the least common multiple of the denominators, you ensure that the fractions have the same base for accurate calculations. Choice B is incorrect because the common denominator is related to the denominators, not the numerators. Choice C is incorrect as the common denominator specifically refers to the bottom number in fractions. Choice D is incorrect as a common denominator may not necessarily divide evenly into both fractions, but it must be a multiple of both denominators.

Correct Answer: A

Rationale: Correct Answer: A Rationale: To convert Fahrenheit to Celsius, you first subtract 32 from the Fahrenheit temperature and then divide by 1.8. This is because the conversion formula is (F - 32) / 1.8. To convert Celsius to Fahrenheit, you multiply the Celsius temperature by 1.8 and then add 32. The formula for this conversion is (C * 1.8) + 32. Therefore, choice A is correct as it follows the correct conversion formulas for both Fahrenheit to Celsius and Celsius to Fahrenheit. Summary of other choices: B: Incorrect because dividing by 2 in Fahrenheit to Celsius conversion is incorrect. C: Incorrect because multiplying by 2 in Fahrenheit to Celsius conversion is incorrect. D: Incorrect because subtracting 30 in Fahrenheit to Celsius conversion is incorrect.

Correct Answer: D

Rationale: To convert yards to feet, you multiply by 3 since 1 yard = 3 feet. Therefore, 9 yards x 3 feet/yard = 27 feet. Option D is correct. Option A is incorrect as it miscalculates the conversion. Option B and C are also incorrect due to incorrect conversion.

Correct Answer: D

Rationale: To find the portion each of the other three friends received, we first calculate what fraction of the pizza was left after one friend ate half. Half of the pizza is 1/2, so 1 - 1/2 = 1/2 is left. Then, we divide 1/2 equally among the three friends, giving each 1/2 ÷ 3 = 1/6. Therefore, each of the other three friends received 1/6 of the pizza. Summary: A: 1/5 - Incorrect. Not the correct division after one friend ate half. B: 1/3 - Incorrect. The correct division is not one-third after one friend ate half. C: 1/4 - Incorrect. The correct division is not one-fourth after one friend ate half.

Correct Answer: D

Rationale: To find the cost of 1 syringe, divide $660 by 55 (55 syringes in a box) = $12 per syringe. To find the cost of 4 syringes, multiply $12 by 4 = $48. Therefore, the correct answer is D. Choices A, B, and C are incorrect as they do not correctly calculate the cost based on the given information.