6. Arya, Abhimanyu, and Vivek shared lunch. Arya has brought two sandwiches, one made of vegetable and one of jam. The other two boys forgot to bring their lunch. Arya agreed to share his sandwiches so that each person will have an equal share of each sandwich.
(a) How can Arya divide his sandwiches so that each person has an equal share? (b) What part of a sandwich will each boy receive? Solutions: (a) Arya has divided the sandwich into 3 equal parts. So each person will get one part. (b) Each boy receive 1 / 3 part ∴ Required Fraction is 1 / 3 7. Kanchan dyes dresses. She had to dye 30 dresses. She has so far finished 20 dresses. What fraction of dresses has she finished? Solutions: Total number of dresses Kanchan has to dye = 30 dresses Number of dresses she has finished = 20 dresses ∴ Required Fraction = 20 / 30 = 2 / 3 8. Write the natural numbers from 2 to 12. What fraction of them are prime numbers? Solutions: Natural numbers from 2 to 12 are 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 Total number of natural numbers given= 11 Number of prime numbers = 5 ∴ Required Fraction = 5 / 11 9. Write the natural numbers from 102 to 113. What fraction of them are prime numbers? Solutions: Natural numbers from 102 to 113 are 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113 Total number of natural numbers given = 12 Number of prime numbers = 4 [103, 107, 109, 113] ∴ Required Fraction = 4 / 12 = 1 / 3 10. What fraction of these circles have Xs in them?2. Express the following as mixed fractions:
(a) 20 / 3 (b) 11 / 5 (c) 17 / 7 (d) 28 / 5 (e) 19 / 6 (f) 35 / 9 Solutions: (a) 20 / 33. Express the following as improper fractions:
(a) (b) (c) (d) (e) (f) Solutions: (a) (7 × 4 + 3) / 4 = 31 / 4 ∴ The improper form is 31 / 4 (b) (5 × 7 + 6) / 7 = 41 / 7 ∴ The improper form is 41 / 7 (c) (2 × 6 + 5) / 6 = 17 / 6 ∴ The improper form is 17 / 6 (d) (10 × 5 + 3) / 5 = 53 / 5 ∴ The improper form is 53 / 5 (e) (9 × 7 + 3) / 7 = 66 / 7 ∴ The improper form is 66 / 7 (f) (8 × 9 + 4) / 9 = 76 / 9 ∴ The improper form is 76 / 9CBSE Board Exam Centre List 2024
Exercise 7.3 Page No: 146 1. Write the fractions. Are all these fractions equivalent?(b)
(i) The shaded portion is 4 / 12 = (4 / 4) / (12 / 4) = 1 / 3 (ii) The shaded portion is 3 / 9 = (3 / 3) / (9 / 3) = 1 / 3 (iii) The shaded portion is 2 / 6 = (2 / 2) / (6 / 2) = 1 / 3 (iv) The shaded portion is 1 / 3 (v) The shaded portion is 6 / 15 = (6 / 3) / (15 / 3) = 2 / 5 All the fractions in their simplest form are not equal Hence, they are not equivalent fractions. 2. Write the fractions and pair up the equivalent fractions from each row.CBSE Syllabus Class 6 | |
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