MDTP Fractions and Rational Numbers 2 โ Questions and Answers
Question 1: What is 2/3 - 1/4?
- 1/12
- 5/12 (Correct answer)
- 1/7
- 3/7
Correct answer: 5/12
LCD of 3 and 4 is 12: 8/12 - 3/12 = 5/12.
Question 2: Which of the following is a rational number?
- โ2
- ฯ
- โ9 (Correct answer)
- e
Correct answer: โ9
โ9 = 3, which is an integer and therefore rational; the others are irrational.
Question 3: Order from least to greatest: -1/2, -2/3, -1/4
- -1/4, -1/2, -2/3
- -2/3, -1/2, -1/4 (Correct answer)
- -1/2, -2/3, -1/4
- -1/4, -2/3, -1/2
Correct answer: -2/3, -1/2, -1/4
Converting to decimals: -1/2=-0.5, -2/3โ-0.667, -1/4=-0.25; ordered: -2/3, -1/2, -1/4.
Question 4: If you eat 3/8 of a pizza and your friend eats 1/4, what fraction remains?
- 1/2
- 3/8 (Correct answer)
- 5/8
- 5/12
Correct answer: 3/8
Eaten = 3/8 + 2/8 = 5/8; remaining = 1 - 5/8 = 3/8.
Question 5: Simplify: (3/5) / (9/10)
- 27/50
- 2/3 (Correct answer)
- 6/9
- 15/45
Correct answer: 2/3
3/5 รท 9/10 = 3/5 ร 10/9 = 30/45 = 2/3.
Question 6: What is the decimal form of 5/16?
- 0.3125 (Correct answer)
- 0.625
- 0.5
- 0.45
Correct answer: 0.3125
5 รท 16 = 0.3125.
MDTP Fractions and Rational Numbers 2
What is 2/3 - 1/4?