ncert class7 math exercise 2.2 questions 7
Answers
Answer:
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Step-by-step explanation:
Step-by-step explanation:
(a) ½ of (i) 2 ¾ (ii) NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 44
Solution:-
(i) 2 ¾
First convert the given mixed fraction into improper fraction.
= 2 ¾ = 11/4
Now,
= ½ × 11/4
By the rule Multiplication of fraction,
Product of fraction = (product of numerator)/ (product of denominator)
Then,
= ½ × (11/4)
= (1 × 11)/ (2 × 4)
= (11/8)
=NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 45
(ii)
NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 46
First convert the given mixed fraction into improper fraction.
=NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 47= 38/9
Now,
= ½ × (38/9)
By the rule Multiplication of fraction,
Product of fraction = (product of numerator)/ (product of denominator)
Then,
= ½ × (38/9)
= (1 × 38)/ (2 × 9)
= (38/18)
= 19/9
=NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 48
(b) 5/8 of (i) NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 49 (ii) NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 50
Solution:-
(i)
NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 51
First convert the given mixed fraction into improper fraction.
=NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 52= 23/6
Now,
= (5/8) × (23/6)
By the rule Multiplication of fraction,
Product of fraction = (product of numerator)/ (product of denominator)
Then,
= (5/8) × (23/6)
= (5 × 23)/ (8 × 6)
= (115/48)
=NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 53
(ii)
NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 54
First convert the given mixed fraction into improper fraction.
=NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 55= 29/3
Now,
= (5/8) × (29/3)
By the rule Multiplication of fraction,
Product of fraction = (product of numerator)/ (product of denominator)
Then,
= (5/8) × (29/3)
= (5 × 29)/ (8 × 3)
= (145/24)
=NCERT Solutions for Class 7 Maths Chapter 2 Fractions and Decimals image 56