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Class 7 Exam  >  Class 7 Tests  >  Mathematics Olympiad Class 7  >  Olympiad Test: Rational Numbers -1 - Class 7 MCQ

Olympiad Test: Rational Numbers -1 - Class 7 MCQ


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10 Questions MCQ Test Mathematics Olympiad Class 7 - Olympiad Test: Rational Numbers -1

Olympiad Test: Rational Numbers -1 for Class 7 2025 is part of Mathematics Olympiad Class 7 preparation. The Olympiad Test: Rational Numbers -1 questions and answers have been prepared according to the Class 7 exam syllabus.The Olympiad Test: Rational Numbers -1 MCQs are made for Class 7 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Rational Numbers -1 below.
Solutions of Olympiad Test: Rational Numbers -1 questions in English are available as part of our Mathematics Olympiad Class 7 for Class 7 & Olympiad Test: Rational Numbers -1 solutions in Hindi for Mathematics Olympiad Class 7 course. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free. Attempt Olympiad Test: Rational Numbers -1 | 10 questions in 20 minutes | Mock test for Class 7 preparation | Free important questions MCQ to study Mathematics Olympiad Class 7 for Class 7 Exam | Download free PDF with solutions
Olympiad Test: Rational Numbers -1 - Question 1
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By what number should –33/8 be divided to get 11/2?

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Olympiad Test: Rational Numbers -1 - Question 2
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Find the additive inverse of (4/5 +3/7)

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The additive inverse of a number is what you add to it to get zero. To find the additive inverse of \(\frac{4}{5} + \frac{3}{7}\), we first need to calculate the sum.

1. To add the fractions, we need a common denominator. The least common multiple (LCM) of 5 and 7 is 35.

  • Convert \(\frac{4}{5}\) to have a denominator of 35: \(\frac{4 \times 7}{5 \times 7} = \frac{28}{35}\).
  • Convert \(\frac{3}{7}\) to have a denominator of 35: \(\frac{3 \times 5}{7 \times 5} = \frac{15}{35}\).

2. Now, add the two fractions:

  • \(\frac{28}{35} + \frac{15}{35} = \frac{43}{35}\).

3. The additive inverse is the negative of this sum:

  • \(-\frac{43}{35}\).

Therefore, the additive inverse of \(\frac{4}{5} + \frac{3}{7}\) is \(-\frac{43}{35}\).

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Olympiad Test: Rational Numbers -1 - Question 3
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What should be added to 

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Olympiad Test: Rational Numbers -1 - Question 4
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What is the simplest form of 84/288?
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Olympiad Test: Rational Numbers -1 - Question 5
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By what rational number 2/7 is divided to get 5?
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Olympiad Test: Rational Numbers -1 - Question 6
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By what rational number 3/13 is multiplied to get –12?
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Olympiad Test: Rational Numbers -1 - Question 7
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Which of the following is incorrect?
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Olympiad Test: Rational Numbers -1 - Question 8
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 The cost of metres of cloth is What is the cost of cloth per metre?
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Cost of cloth per metre 

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What is the simplified value of 
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Olympiad Test: Rational Numbers -1 - Question 10
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The sum of reciprocals of two rational numbers is 7/4. If one of the numbers is 2/3 what is the other?
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