Answer: 1.2840 as a fraction is 321/250
Converting the decimal number 1.2840 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 1.2840 can be broken down as:
1.2840 = 1 + 0.284
Here, 1 is the whole number part, and 0.284 is the decimal part.
Focus on converting the decimal part, 0.284, to a fraction. To do this, consider the place value of the decimal:
0.284 =
284
1000
Now, simplify the fraction 284/1000. To do this, find the greatest common divisor (GCD) of 284 and 1000.
Now, divide both the numerator and the denominator by their GCD:
284 ÷ 4
1000 ÷ 4
=
71
250
So, 0.284 as a fraction is 71/250
Now that you have 1.2840 = 1 + 0.284, express the entire number as a mixed fraction:
1.2840
= 1 +
71
250
=
250
250
+
71
250
=
321
250
Here, 250/250 is the whole number 1, and 71/250 is the fractional part.
Answer: 1.2840 = 321/250
Converting 1.2840 to a fraction results in 321/250. 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.