Closed Operation or Rational Numbers

What is the product?
⁴/₅ × ¹/₅

• ⁵/₁₀
• ⁴/₁₀
• ⁴/₂₅
• ⁵/₂₅

What is the quotient?
³/₄ ÷ ³/₈

• ¹/₂
• ¹/₄
• 0
• 2

What is the difference?
⁹/₁₄ - ³/₇

• ³/₁₄
• ⁶/₇
• ³/₁₄
• ⁶/₁₄

Will the answer be positive or negative?
-2 × (-5) × (-1) × (-9)

• Positive
• Negative

Will the answer be positive or negative?
-2 + (-5) + (-1) + (-9)

• Positive
• Negative

What is the product?
13.8 × 0.11

• 1,518
• 151.8
• 15.18
• 1.518

What is the sum?
13.8 + 0.11

• 13.91
• 1.49
• 14.9
• 149

When multiplying two numbers with the same sign your answer will be? (neg x neg or pos x pos)

• Negative
• Zero
• Positive
• No Sign

5 ²/₃ + 4 ³/₅ 

• 10 ⁴/₁₅ hours
• 10 hours
• 9 ¹⁹/₃₀ hours
• 9 ^4/₁₅ hours

3 ¹/₄ + (- 2 ¹/₂) 

• 2 ¹/₃ cups
• 1 ¹/₄ cups
• ³/₄ cups
• ¹/₂ cup