Answer: 0.8420 as a fraction is 421/500
Converting the decimal number 0.8420 into a fraction might seem tricky at first, but with the right steps, it's straightforward. This guide will walk you through the entire process, ensuring you understand each part of the conversion.
The decimal 0.8420 can be broken down as:
0.8420 = 0 + 0.842
Here, 0 is the whole number part, and 0.842 is the decimal part.
Focus on converting the decimal part, 0.842, to a fraction. To do this, consider the place value of the decimal:
0.842 =
842
1000
Now, simplify the fraction 842/1000. To do this, find the greatest common divisor (GCD) of 842 and 1000.
Now, divide both the numerator and the denominator by their GCD:
842 ÷ 2
1000 ÷ 2
=
421
500
So, 0.842 as a fraction is 421/500
Now that you have 0.8420 = 0 + 0.842, express the entire number as a mixed fraction:
0.8420
= 0 +
421
500
=
0
500
+
421
500
=
421
500
Here, 0/500 is the whole number 0, and 421/500 is the fractional part.
Answer: 0.8420 = 421/500
Converting 0.8420 to a fraction results in 421/500. This detailed process of breaking down the decimal, converting it, simplifying, and then combining the parts gives you a clear understanding of how to handle such conversions in math, everyday calculations, or even complex problem-solving.