Easy way to find decimal expansion of rational numbers | rational numbers in decimal form
00:02 Q2. Write down the decimal expansions of those rational numbers in Question 1 above which have terminating decimal expansions.
00:05 (i)decimal expansion of 13/3125
01:05 Prime factorization of 3125 .
01:13 Convert Denominator in the form 2^n*5^n.
02:12 Write down the decimal expansion of rational number 13/3125
02:40 (ii) decimal expansion 17/8
03:03 Prime Factorization of 8.
03:16 prime factorisation of q(8) is of the form 2^n5^m, where n,m are non-negative integers.
03:29 Convert Denominator 8 in the form 2^n*5^n.
04:12 Write down the decimal expansion of rational number 17/8
04:25 (iv) decimal expansion 15/1600
05:16 Prime Factorization of 1600.
05:32 prime factorisation of q(1600) is of the form 2^n5^m, where n,m are non-negative integers
06:42 Convert Denominator 1600 in the form 2^n*5^n.
06:50 Write down the decimal expansion of rational number 15/1600
07:15 (vi) decimal expansion 23/(2^3*5^3)
07:32 Convert Denominator 1600 in the form 2^n*5^n.
08:35 Write down the decimal expansion of rational number 23/(2^3*5^3)
08:55 (viii) decimal expansion 6/15
09:06 Prime Factorization of 5
09:18 Convert Denominator 5 in the form 2^n*5^n.
09:50 Write down the decimal expansion of rational number 6/15
10:14 (ix) decimal expansion 35/50
10:36 Prime Factorization of 50
10:52 Convert Denominator 5 in the form 2^n*5^n.
11:14 Write down the decimal expansion of rational number 35/50
CBSE solutions for class 10 maths Chapter 1 Real Numbers Exercise 1.4
CBSE class 10 maths NCERT Solutions Chapter 1 Real Numbers Exercise 1.2 | Euclid Division Lemma
CBSE class 10 maths NCERT Solutions Chapter 1 Real Numbers
Solutions for CBSE class 10 Maths Real Numbers
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NCERT solutions for CBSE class 10 maths Real Numbers
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