Converting Inches to Miles
Date: 11/21/97 at 00:08:57 From: Phillip Subject: Converting inches into miles I know that 12 inches is equal to one foot and 5,280 feet is equal to one mile, but what I don't know is how to convert 22 inches into miles.
Date: 11/21/97 at 08:35:43 From: Doctor Jerry Subject: Re: Converting inches into miles Hi Philip, Unit cancellation is a method that helps decide whether you should multiply or divide. The idea is to multiply 22 inches by some equivalent ratios until the units cancel as desired. 1 foot 1 mile 22 inches * --------- * --------- 12 inches 5280 feet Inches cancel and feet cancel, leaving 22*(1/12)*(1/5280) miles. -Doctor Jerry, The Math Forum Check out our web site! http://mathforum.org/dr.math/
Search the Dr. Math Library:
Ask Dr. MathTM
© 1994- The Math Forum at NCTM. All rights reserved.