Answer: 0.7780 as a fraction is 389/500
Converting the decimal number 0.7780 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 0.7780 can be broken down as:
0.7780 = 0 + 0.778
Here, 0 is the whole number part, and 0.778 is the decimal part.
Focus on converting the decimal part, 0.778, to a fraction. To do this, consider the place value of the decimal:
0.778 =
778
1000
Now, simplify the fraction 778/1000. To do this, find the greatest common divisor (GCD) of 778 and 1000.
Now, divide both the numerator and the denominator by their GCD:
778 ÷ 2
1000 ÷ 2
=
389
500
So, 0.778 as a fraction is 389/500
Now that you have 0.7780 = 0 + 0.778, express the entire number as a mixed fraction:
0.7780
= 0 +
389
500
=
0
500
+
389
500
=
389
500
Here, 0/500 is the whole number 0, and 389/500 is the fractional part.
Answer: 0.7780 = 389/500
Converting 0.7780 to a fraction results in 389/500. 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.