Fractional Addition & Subtraction Made Easy

Is adding and subtracting fractional measurements slowing down the progress of your woodworking projects? Spike Carlsen has couple of quick tips on how to make fractional addition and subtraction quick and easy.

[Facemelt]

I am new to carpentry and this video just helped me out tremendously. Thank you so much!!

[Wwgoa]

Glad you enjoyed it! Happy woodworking!

[caleb_helm]

After watching the video, I grabbed my tape and try it out. Great tip.

[dennydenco]

That is one TOTALLY awesome tip! Thanks!

[WoodTraveler]

That is very cool... nobody even noticed the green screen "shop" your in! way to phone it in!

[godson]

That, is something I never knew 😳. Learned something knew about mathematics and the tape measure.

[Wwgoa]

Thanks for the TOTALLY awesome comment!

[SAHBfan]

Metric vs Imperial isn't just a matter of convenience. I work for a German company that owns an American subsidiary. The confuses of imperial vs metric is a pain - as is the fact that I have to carry two sets of tools, one for the European bits of the machines I work on - and another set for the American bits.

Don't forget NASA lost a multi gazzillion $ satellite because the programmers got confused over feet and metres..

The imperial system is way past it's sell by date.

[DaveK]

Nobody said that changing over wouldn't take some time and effort. Australia started in '66 with decimal currency, then the rest of the measurement system (volume, weights, speed/distance etc.) from '75 to '85. It took time and caused a little disruption, but overall it wasn't as hard as predicted.

While I still have a couple of hangovers from the imperial measurements, my kids are totally free of it and don't care about inches - or fractions thereof - or miles or gallons.

It's coming

[samuils]

Oh I agree, wish USA switches finally

[TheWarning]

AYO! Where can I get that guitar intro?!?!

[zacharyjohnson]

Yo this makes sense? How do you guys make sense of this “trick”

[synapse]

around 16 feet. Just remember that meters and yards are close to each other and there are 3 feet per yard.

[The_Engineers]

just go too the wikipedia and start using it it will its way better then imperial

[The_Engineers]

mm = millimetre 1mm = 0.03937inches
cm = centimetre 1 centimeter = 0.393700787 inches
m = metre 1 meter = 39.3700787 inches
km= kilometre 1 kilometer = 39 370.0787 inches

mm are used in metal work every thing there is done in mm dose not mather how big the number gets

cm is used in wood building but fine woodworking also every thing in mm

m is about 1 yard more of an esmetinc thing

km is used as speed and longdistens like your mile

please al go to metric :D

[synapse]

You forgot the "ed" on the end of imperil. ;)

[johnhudelson]

Imperial measurements are like old British money - 12 pence to a shilling and 20 shillings to a pound.

[donmark]

Agree. Metric. At least start putting metric on the tape tools.

[The_Engineers]

o and
10mm is 1cm
100cm is 1m
1000m is 1 km

[KaliBlaz]

I hate imperial measurements, way too much fractions of an inch, with metrics it is much easier.