CBSE Class 7  >  Class 7 Notes  >  Mathematics (Maths) (Old NCERT)  >  Unit Test: Fractions and Decimals

Unit Test: Fractions and Decimals

Time: 1 hour

M.M.: 30

Attempt all questions.

Question numbers 1 to 5 carry 1 mark each.

Question numbers 6 to 8 carry 2 marks each.

Question numbers 9 to 11 carry 3 marks each.

Question numbers 12 & 13 carry 5 marks each.

Q1: Which of the drawings (a) to (d) show: (1 Mark)

(i) 2 × (1/5) (ii) 2 × ½ (iii) 3 × (2/3) (iv) 3 × ¼

Unit Test: Fractions and Decimals

Q2: What is the product of 2/3 and 4/5? (1 Mark)
(i) 8/15
(ii) 8/5
(iii) 6/15
(iv) 12/15

Q3: Multiply 3.4 by 0.05. (1 Mark)

Q4: What is the reciprocal of 9/11? (1 Mark)
(i) 9
(ii) 11/9
(iii) 9/11
(iv) 1

Q5: Multiply: 79×0.5 (1 Mark)

Q6: A rectangular field is 15.4 m long and 7.6 m wide. Find its area. (2 Marks)

Q7: Simplify: 1.23÷0.3. (2 Marks)

Q8:Find three different fractions between 13 and 23. (2 Marks)

Q9: Vidya and Pratap went for a picnic. Their mother gave them a water bottle that contained 5 litres of water. Vidya consumed 25of the water, and Pratap consumed the remaining water.(3 Marks)

(i) How much water did Vidya drink?
(ii) 
What fraction of the total quantity of water did Pratap drink?

Q10: A vehicle covers a distance of 72.8 km in 3.2 litres of petrol. How much distance will it cover in 1 litre of petrol? (3 Marks)

Q11: Riya plants 5 saplings in a row in her garden. The distance between two adjacent saplings is 23m. Find the distance between the first and the last sapling. (3 Marks)

Q12: In a class of 50 students: (5 Marks)

25 of the total number of students like to study English,

310of the total number like to study Mathematics,

The remaining students like to study Science.

Answer the following questions:

(i) How many students like to study English?
(ii) How many students like to study Mathematics?
(iii) What fraction of the total number of students like to study Science?
(iv) How many students like to study Science?

Q13: Solve the following problems (5 Marks)

(i) Rani ate 2/7 part of a cake while her brother Ravi ate 4/5 of the remaining. Part of the cake left is

(ii) Provide the number in the box, such that:

Unit Test: Fractions and Decimals

(iii) The simplest form of the number obtained in (ii) is ______.

You can find the solutions of this Unit Test here: Unit Test (Solution): Fractions and Decimals

The document Unit Test: Fractions and Decimals is a part of the Class 7 Course Mathematics (Maths) Class 7 (Old NCERT).
All you need of Class 7 at this link: Class 7

FAQs on Unit Test: Fractions and Decimals

1. What are the basic rules for converting fractions to decimals ?
Ans.To convert a fraction to a decimal, divide the numerator (the top number) by the denominator (the bottom number). For example, to convert 1/4 to a decimal, divide 1 by 4, which equals 0.25.
2. How do I add and subtract fractions with different denominators ?
Ans.To add or subtract fractions with different denominators, first find a common denominator. Then, convert each fraction to an equivalent fraction with that common denominator. Finally, add or subtract the numerators and keep the common denominator.
3. What is the relationship between fractions and decimals ?
Ans.Fractions and decimals represent the same concept of parts of a whole. A fraction expresses a part using a numerator and denominator, while a decimal expresses the same part using a point system. For example, 1/2 is equal to 0.5.
4. How can I simplify a fraction before converting it to a decimal ?
Ans.To simplify a fraction, divide both the numerator and denominator by their greatest common divisor (GCD). For example, to simplify 4/8, divide both 4 and 8 by 4 to get 1/2, which can then be converted to the decimal 0.5.
5. What are some common mistakes to avoid when working with fractions and decimals ?
Ans.Common mistakes include forgetting to find a common denominator when adding or subtracting fractions, misplacing the decimal point when converting fractions, and not simplifying fractions before performing operations. Always double-check calculations to avoid these errors.
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