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Ratio and Proportion

ICSE · Class 7 · Mathematics

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

52 questions24 flashcards5 concepts

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24 Flashcards
Card 1Simplifying ratios

Solve: Simplify 6 : 8

Answer

Step 1: Find the H.C.F. of 6 and 8. It is 2. Step 2: Divide both terms by 2. 6 : 8 = (6 ÷ 2) : (8 ÷ 2) = 3 : 4 Answer: 3 : 4…

Card 2Simplifying ratios

Solve: Simplify 22 : 66

Answer

Step 1: Find the H.C.F. of 22 and 66. It is 22. Step 2: Divide both terms by 22. 22 : 66 = (22 ÷ 22) : (66 ÷ 22) = 1 : 3 Answer: 1 : 3…

Card 3Fractional ratio to whole numbers

Solve: Simplify 1/3 : 1/4

Answer

Step 1: Take the L.C.M. of the denominators 3 and 4. It is 12. Step 2: Multiply both terms by 12. (1/3) : (1/4) = (1/3 × 12) : (1/4 × 12) Step 3: Simplify each term. = 4 : 3 Answer: 4 : 3…

Card 4Fractional ratio to whole numbers

Solve: Simplify 4 1/4 : 1 1/12

Answer

Step 1: Convert mixed numbers into improper fractions. 4 1/4 = 17/4 and 1 1/12 = 13/12 Step 2: Take the L.C.M. of 4 and 12. It is 12. Step 3: Multiply both terms by 12. (17/4 × 12) : (13/12 × 12) = 51…

Card 5Sharing in a ratio

Solve: Divide 20 sweets between A and B in the ratio 2 : 3

Answer

Step 1: Add the parts of the ratio. 2 + 3 = 5 Step 2: Find A's share. A gets (2/5) of 20 = 8 sweets Step 3: Find B's share. B gets (3/5) of 20 = 12 sweets Answer: A = 8 sweets, B = 12 sweets…

Card 6Sharing in a ratio

Solve: Divide ₹260 among A, B and C in the ratio 1/2 : 1/3 : 1/4

Answer

Step 1: Convert the ratio into whole numbers. L.C.M. of 2, 3 and 4 = 12 (1/2) : (1/3) : (1/4) = 6 : 4 : 3 Step 2: Add the parts. 6 + 4 + 3 = 13 Step 3: Find each share. A = (6/13) of 260 = ₹120 B = (4…

Card 7Ratio word problem

Solve: Two numbers are in the ratio 10 : 13. Their difference is 48. Find the numbers.

Answer

Step 1: Let the numbers be 10x and 13x. Step 2: Find the difference in parts. 13x - 10x = 3x Step 3: Use the given difference. 3x = 48 Step 4: Find x. x = 48 ÷ 3 = 16 Step 5: Find the numbers. 10x = 1…

Card 8Ratio word problem

Solve: Two numbers are in the ratio 8 : 13. The second number is 156. Find the first number.

Answer

Step 1: Write the ratio as 8 parts and 13 parts. Step 2: If 13 parts = 156, then 1 part = 156 ÷ 13 = 12 Step 3: Find 8 parts. 8 × 12 = 96 Answer: 96…

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Frequently Asked Questions

What are the important topics in Ratio and Proportion for ICSE Class 7 Mathematics?
Ratio and Proportion covers several key topics that are frequently asked in ICSE Class 7 board exams. Focus on the core concepts listed on this page and practise related questions to build confidence.
How to score full marks in Ratio and Proportion — ICSE Class 7 Mathematics?
Understand the core concepts first, then work through the 52 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 Ratio and Proportion?
There are 24 flashcards for Ratio and Proportion covering key definitions, formulas, and concepts. Use them daily for 10–15 minutes for best results.

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