4.2E-4 as a fraction

4.2E-4 as a fraction - solution and the full explanation with calculations.

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What is 4.2E-4 as a fraction?


To write 4.2E-4 as a fraction you have to write 4.2E-4 as numerator and put 1 as the denominator. Now you multiply numerator and denominator by 10 as long as you get in numerator the whole number.
4.2E-4 = 4.2E-4/1 = 0.0042/10 = 0.042/100 = 0.42/1000 = 4.2/10000 = 42/100000

And finally we have:
4.2E-4 as a fraction equals 42/100000

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