The Inch, understanding it's fractions. Converting it to 100th's

Understanding the inch. What do all those little black lines mean. how can I do math with those little black lines between the inch.

[michaeljohn]

Thank you very much for your time ! I’m taking my mechanics license for aviation. Needed to brush up.
I can’t tell you how many people have tried to explain this to me . This was so remedial yet genius.
Thank you so much 🙏
I will be using this every day at my job. I just hope you know that you have taught me something worth more than gold.

[sic-n-tiredtired]

Couldn't have asked for a better explanational video. Simple to understand the way you described 52yrs. Later THANK YOU

[stlskin]

Been a carpenter my whole life. Wish this was explaind to me like this when i was first starting out. You simplified it very well. If only schools would do it this well.

[shanelodge]

Very good explanation. You have just demonstrated the ease of using the metric system. Just drop all the fractions and go straight to metres, centimetres, and millimetres. You’ll never need to worry about eighths, sixteenths etc etc again. Well done.

[Brillbruv]

This is by far one of the best in depth videos. I'm taking my aptitude test to be an aircraft mechanic. Thank you for taking the time to help us out.

[brunogeorge]

I started a cabinetmaking and I just did not get the fraction finally understood the breakdown to fractions...THANK YOU FOR THE BEST EXPLANATION EVER.

[tanielsimpson]

Never give up on what you really want to do The person with big dreams is more powerful That the person with all the facts 👑

[isaiahyoung]

This video was very helpful because it's so detailed! Thx for sharing your knowledge.

[maryhuebenthal]

I don't remember ever remembering, having someone, teacher or otherwise, explain this method. I'm a visual person. Thanks a bunch!!!!

[jackrag]

Terrific video that truly helped me with setting my gutter margins for a paperback book I am publishing. Thank you.

[ET-cjjo]

You have shown exactly why the metric system is used everywhere else.
I have been reading a USA book on machine tool operation. Everything is of course in imperial units, and fractions (based on sequential division by 2, so not any fraction). However, and this is the enigma, in order to make any calculations, they first convert fractions to decimal (decimal inches), do the calculation, and then convert back to the nearest fraction, which results in significant error.
I was looking to calculate the hole diameter required for making a threaded nut. The formula is simple, just the diameter minus the inversion of the pitch, so for a 7/8 inch dia thread, which has a pitch of 9, it is 7/8 - 1/9. In the old days we would find a common denominator and do the calculation that way (result = 55/72ths or 0.7638), but the engineers in the USA instead convert everything to decimal, and with the result use a book of tables to find the nearest equivalent in fractions (in this case 49/64ths or 0.7656). The scientific mystery to me is that they calculate using 4 decimal places, but then use an approximation to get the resulting fraction, negating any need for 4 decimal place accuracy. And they call it engineering ?
Also interestingly, when the measurement is very small, they switch to “thousandths” or even “tenths” (ie 0.1 of a thou) which are of course (base ten) decimal. They use micrometers which are in decimal inches, and which come with complex conversions to fractions imprinted on them (and with far less accuracy). So a thousandth (0.001) is acceptable ….. but everything else has to be based on sequential halving, ie fractions.
So why not just use decimal (base 10) and forget fractions ? Would that not be more accurate, consistent, and transmittable ?
The US Americans have their heads in the sand regarding a useful system of measurement.

[genrose]

THIS IS EXACTLY WHAT I NEEDED! THANK YOU SO MUCH FOR EXPLAINING THE 100ths PART LIKE A GENIUS!!!!

[tjvanderloop]

Outstanding Job. Ideal for Welders & Machine-tool Students.

T J Vanderloop, Author, Manufacturing Consultant & Technology Instructor

[lynnhyden]

Thank you very much, I haven't used a tape measure in a long time. You broke it down and made it easy to understand. It all started coming back to me, lol. You are a great teacher and you stay on point....
Thanks again

[elitamusliu]

Coming from Europe using metric all my life, this has been a great help. Thank you so much

[wefkisaleh]

THANK YOU !!! JUST THANK YOU !!! I couldn’t for the life of me figure out what these little numbers represented and no one on you tube explained it like you did !! Great teacher

[annettehachey]

I've started quilting and couldn't figure out how to cut on the 7/8ths mark, almost 55 yrs old and now I know! Thank you very much 😊

[nazarethsander]

Awesome. Love the detailed break down between the once inch reading. Thanks, sir. I have learned something new and useful which I can now apply.

[leovilla]

I been looking so many videos to understand how to figure it out this kind of fractions and honestly you my man explain everything perfectly. Thank you so much

[TechnicalEnglish]

You are awesome, sir. This is the easiest way to understand fractions and decimals. Very happy I got your video watched. Thank you.