Answer: 0.6405 as a fraction is 1281/2000
Converting the decimal number 0.6405 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 0.6405 can be broken down as:
0.6405 = 0 + 0.6405
Here, 0 is the whole number part, and 0.6405 is the decimal part.
Focus on converting the decimal part, 0.6405, to a fraction. To do this, consider the place value of the decimal:
0.6405 =
6405
10000
Now, simplify the fraction 6405/10000. To do this, find the greatest common divisor (GCD) of 6405 and 10000.
Now, divide both the numerator and the denominator by their GCD:
6405 ÷ 5
10000 ÷ 5
=
1281
2000
So, 0.6405 as a fraction is 1281/2000
Now that you have 0.6405 = 0 + 0.6405, express the entire number as a mixed fraction:
0.6405
= 0 +
1281
2000
=
0
2000
+
1281
2000
=
1281
2000
Here, 0/2000 is the whole number 0, and 1281/2000 is the fractional part.
Answer: 0.6405 = 1281/2000
Converting 0.6405 to a fraction results in 1281/2000. 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.