Answer: 1.2870 as a fraction is 643.5/500
Converting the decimal number 1.2870 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 1.2870 can be broken down as:
1.2870 = 1 + 0.287
Here, 1 is the whole number part, and 0.287 is the decimal part.
Focus on converting the decimal part, 0.287, to a fraction. To do this, consider the place value of the decimal:
0.287 =
287
1000
Now, simplify the fraction 287/1000. To do this, find the greatest common divisor (GCD) of 287 and 1000.
Now, divide both the numerator and the denominator by their GCD:
287 ÷ 2
1000 ÷ 2
=
143.5
500
So, 0.287 as a fraction is 143.5/500
Now that you have 1.2870 = 1 + 0.287, express the entire number as a mixed fraction:
1.2870
= 1 +
143.5
500
=
500
500
+
143.5
500
=
643.5
500
Here, 500/500 is the whole number 1, and 143.5/500 is the fractional part.
Answer: 1.2870 = 643.5/500
Converting 1.2870 to a fraction results in 643.5/500. 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.