You know that 1/7 = I.142857 bar. Can you predict what the decimal expansions of 2/7, 3/7, 4/7, 5/7, 6/7 are, without actually doing the long division? If so, HOWAND WHY?
Asked by Shashi Bushan | 10th Mar, 2017, 06:58: PM
Expert Answer:
This can be done using multiplication. But there is no need to do that even. Directly you can observe the decimal part of 1/7.
To multiply 2(1/7), we shift the decimal two places to the right.
Similarly, to multiply 2(1/7), we shift the decimal point, three places to the right.
The same can be done for the others.
This happens since 1/7 is recurring and hence you will get the same remainders again and again after a certain pattern.
Answered by Rebecca Fernandes | 10th Mar, 2017, 09:03: PM
Related Videos
- what real number
- what are real numbers
- find four rational number between 3 by 7 and 5 by 7
- 5+2√3÷5-2√3
- What is real no
- What are prime numbers
- 1)State whether the following statements are true or false. Give reasons for your answer. (a)Every rational number is a whole number
- Are fractions real numbers
- 1. What is a nonzero? 2. What is a nonzero even numbers? 3. what is a nonzero multiple of 3?
Kindly Sign up for a personalised experience
- Ask Study Doubts
- Sample Papers
- Past Year Papers
- Textbook Solutions
Sign Up
Verify mobile number
Enter the OTP sent to your number
Change