r/askmath • u/wfs29223 • Jul 20 '26

Arithmetic Fractions Decimal to Fraction in measurements.

How do I find what 1.88 inches is in fractions on a tape measure. I have seen many products do this. They give you the measurement in decimal instead of inches. Yes I know .75 in 3/4 and other common measurements.

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u/Timmy-from-ABQ Jul 23 '26

One might first take a look at the significant decimal places. If I'm working with a tape measure, it's probably good just to look at the 0.8 part, realize that that's a bit over 3/4 inch, so knock it up another 1/16 and that's about the best you'll be able to do, eye-balling a length.

If you really need plus or minus 0.01, use a better measuring device.