A decimal is a number that uses a dot (called a decimal point) to show parts of a whole. For example, in the number 3.5, the decimal point separates the whole number 3 from the fraction part 5/10.
Decimals make it easier to work with fractions, especially when dealing with money or measurements. Instead of writing 1/2, we can write it as 0.5.
To read decimals, say the whole number part first, then "point," followed by each digit in the decimal part. For example, 4.32 is read as "four point three two."
To compare decimals, look at the digits after the decimal point from left to right. For example, to compare 0.3 and 0.25, you’ll see that 0.3 is larger because 3 is greater than 2 in the tenths place.
To convert fractions to decimals, divide the top number (numerator) by the bottom number (denominator). For example, to convert 1/4 to a decimal, divide 1 by 4, which equals 0.25.
