Rule.—Remove the (.) as many places to the left as there are ciphers in the divisor.
| Work: | ||||||
| 62.5 | ÷ | 10 | = | 6 | .25 | |
| 62.5 | ÷ | 100 | = | .625 | ||
| 62.5 | ÷ | 1000 | = | .0625 | ||
Expression of decimal fractions as common fractions.
Example: Express 5.375 as a common fraction.
Example: .375 = 375 thousandths.
Therefore 5.375 = 53751000 = 538 Ans.
Rule.—Take the digits of the decimal for numerator; for the denominator put down 1 followed by as many ciphers as there are digits in the decimal. Reduce this fraction to its lowest terms.
Expression of common fractions as decimals.
We have seen that a common fraction represents the quotient of the numerator divided by the denominator. Therefore, to convert a common fraction to a decimal fraction, we divide the numerator by the denominator.