How to Convert from Decimal Form to Base Seven | Summary and Q&A

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October 26, 2020
by
The Math Sorcerer
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How to Convert from Decimal Form to Base Seven

TL;DR

This video explains how to convert a decimal number to base 7 by repeatedly dividing by 7 and recording the remainders.

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Key Insights

  • ⚾ Decimal numbers can be converted to base 7 by repeatedly dividing by 7 and recording the remainders.
  • ⚾ Multiplying the decimal part by 7 helps determine the next digit in the base 7 representation.
  • 🪈 Writing down the remainders in reverse order gives the final converted number.

Transcript

in this problem we're going to convert this number which is in base 10 also known as decimal form 2 base 7. to do this we're going to repeatedly divide by 7 and write down the remainders so we'll start by taking 7508 and dividing it by 7. so if i put this in my calculator i get 1072 point and i get a really long decimal .571429 so now what you do i... Read More

Questions & Answers

Q: What is the method used to convert a decimal number to base 7?

The method involves continuously dividing the decimal number by 7, recording the remainders, and then writing down the remainders in reverse order to obtain the base 7 representation.

Q: How do you calculate the initial division?

To calculate the initial division, divide the decimal number by 7 using long division. The quotient represents the whole number part, and the decimal part is multiplied by 7 to continue the process.

Q: What is the significance of the remainders in the conversion?

The remainders obtained after each division provide the digits for the base 7 representation of the decimal number. They are crucial in determining the final converted number.

Q: Why is it important to multiply the decimal part by 7 in each step?

Multiplying the decimal part by 7 in each step allows for finding the next digit in the base 7 representation. The whole number part of the product is subtracted, resulting in a new remainder.

Summary & Key Takeaways

  • The video demonstrates the step-by-step process of converting a decimal number to base 7 by dividing and finding remainders.

  • Each division is followed by multiplying the decimal part by 7 and subtracting to obtain the remainder.

  • The process is repeated until the dividend becomes 0, and the remainders are written down in reverse order to form the base 7 representation of the initial decimal number.

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