How to determine which of 0.470, 0.47, and 0.4 is the largest?

[Indranil]

1½ is called a "mixed number" because it's a combination of a Whole number (1) and a fraction (½).

We say 1½ outloud as "one and one-half" or "one and a half". Here, the word "and" really means "plus". We don't write + and we don't say "plus" but all mixed numbers are the sum of a Whole number and a fraction.

1½ means 1+½

All mixed numbers can be written in decimal form.

1½ = 1.5

Here, the decimal point means plus.

1.5 is 1+0.5

The fractional part of this mixed number (0.5) shows digit 5 in the tenths place.

0.5 = 5/10

5/10 reduces to 1/2

1½ = 1+½ = 1+0.5 = 1.5


Note: some fractions have a repeating decimal form.

1/3 = 0.3333… (the dots indicate digit 3 repeats forever)

4/7 = 0.57142857142857142857142857…

Another way to write a repeating decimal is to draw a bar over the repeating part.

\(\displaystyle \frac{1}{3} = 0.\overline{3}\\
\;\\
\frac{4}{7}= 0.57\overline{142857}\)


:cool:

Thank you all for your kind efforts.

 

[mmm4444bot]

Some countries use a period as a multiplication sign, so be careful when reading information online. In those countries, they also use a comma for a decimal point.

4.2=8 and 3.2,5=7,5 in those countries would be written as 4*2=8 and 3*2.5=7.5 in other countries.