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Rational Numbers

ICSE · Class 7 · Mathematics

Flashcards for Rational Numbers — ICSE Class 7 Mathematics. Quick Q&A cards covering key concepts, definitions, and formulas.

39 questions28 flashcards5 concepts

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A nested Venn diagram illustrating the relationships between natural numbers (N), integers (Z), rational numbers (Q), and real numbers (R) as subsets of each other.
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28 Flashcards
Card 1Introduction to rational numbers

Solve: Is 8 ÷ 5 an integer?

Answer

Step 1: Divide 8 by 5. Step 2: 8 ÷ 5 = 8/5. Step 3: 8/5 is a fraction, not an integer. Answer: No, 8 ÷ 5 is not an integer.

Card 2Rational numbers as fractions

Write 5 as a rational number in fraction form.

Answer

Step 1: Any integer can be written with denominator 1. Step 2: 5 = 5/1. Answer: 5/1.

Card 3Standard form

Check whether 3/4 is in standard form.

Answer

Step 1: The denominator must be positive. Step 2: 4 is positive. Step 3: 3 and 4 have no common factor other than 1. Answer: Yes, 3/4 is in standard form.

Card 4Standard form

Check whether 15/24 is in standard form.

Answer

Step 1: The denominator is positive. Step 2: Check common factors of 15 and 24. Step 3: Both are divisible by 3. Answer: No, 15/24 is not in standard form.

Card 5Types of rational numbers

Classify 45/17, -23/-16, -56/-115, and 125/325 as positive, negative, or zero rational numbers.

Answer

Step 1: 45/17 has same signs in numerator and denominator, so it is positive. Step 2: -23/-16 has same signs, so it is positive. Step 3: -56/-115 has same signs, so it is positive. Step 4: 125/325 has

Card 6Types of rational numbers

Classify -5/7, 8/-11, 15/-13, and -23/25.

Answer

Step 1: -5/7 has opposite signs, so it is negative. Step 2: 8/-11 has opposite signs, so it is negative. Step 3: 15/-13 has opposite signs, so it is negative. Step 4: -23/25 has opposite signs, so it

Card 7Types of rational numbers

Is 0 a positive rational number, negative rational number, or neither?

Answer

Step 1: 0 is a rational number. Step 2: It is not positive. Step 3: It is not negative. Answer: 0 is neither positive nor negative.

Card 8Comparing rational numbers

Compare 5/7 and -3/5.

Answer

Step 1: 5/7 is positive. Step 2: -3/5 is negative. Step 3: Every positive rational number is greater than every negative rational number. Answer: 5/7 > -3/5.

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Frequently Asked Questions

What are the important topics in Rational Numbers for ICSE Class 7 Mathematics?
Key topics in Rational Numbers include Rational Numbers – Complete Chapter Overview, Rational Numbers Concept Map, Decision Tree for Rational Number Operations. These are the concepts ICSE Class 7 examiners draw on most — study them first, then practise related questions.
How to score full marks in Rational Numbers — ICSE Class 7 Mathematics?
Understand the core concepts first, then work through the 39 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.
How many flashcards are available for Rational Numbers?
There are 28 flashcards for Rational Numbers covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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