Could someone help me with conversions?

Question

For my 7th grade advanced math class, we're doing conversions... things such as 260 decigrams to quintals, etc.

Is there a quicker and easier method to convert different amounts of units into other units?

Thanks!

Answer 1

I use this method, that I learned from a chemistry teacher:

For example: convert 50 miles per hour to feet per second...

(50 miles/1 hour)(1 hour/3600 seconds)(5280 feet/1 mile)

The fractions are set up so that the labels (hours, miles) cancel each other out...

So... you would get (50*1*5280)/(1*3600*1) = 73.33333 ft/sec

Answer 2

The easiest and most reliable way to do conversions is to express conversion factors as unit fractions, complete with dimensions. For example:
10 dg = 1g, 10dg/1g = 1 = 1 g/10dg
1 quintal = 100 kg
1 = 1 quintal /100 kg
1,000 g = 1kg
1 = 1 kg/1,000 g
The reciprocal of a unit fraction still has a value of 1, so you can interchange numerator and denominator as you please without affecting the actual value. arrange chains so that the intermediate dimensions and the original dimension cancel out, leaving the dimension you want in the numerator:
(260 dg)(1 g/10 dg)(1 kg/1,000 g)(1 quintal/100 kg) =
0.000260 quintal

This may seem slow and awkward at first, but it's a lot faster than getting a wrong answer because you reversed one or two conversion factors.

Of course, the fastest way is to memorize all the possible conversion factors, but I have yet to meet the person who can, let alone will.

Remember, your calculator can die on you, and curiously, when they do, it's when you need them the most. So can computers and servers.

Answer 3

The easiest way to convert units is to ask Google. Type in:

Convert 35 kilometres to parsecs

or whatever, and it will tell you the conversion factor!

For an interesting demo, try converting cubic attoparsecs into fluid ounces -- they are almost exactly the same.

Answer 4

As long as you know the equivalency between two units, you can use unit analysis to convert from one unit to another conveniently.

For example
A = 10B
C = 100B
C = ?A

You write C = 100B first, and then use equivalency A=10B to cancel B to get A,
C = 100B = 100B[1A/(10B)] = 10A

Answer 5

Here you go this will do the job for you

http://www.onlineconversion.com/

Answer 6

there isn't..the ezest is ur calculator or ur cell phone. lol.