FILL_IN_THE_BLANK:reduced fraction
@@[2481215](10)
reduced fraction
If the greatest common divisor of the numerator and denominator of a fraction is 1, the fraction is called a reduced fraction.
For example, 3 / 4, 5 / 2, 1 / 8, 7 / 1 are all reduced fractions.
How many reduced fractions are there? The numerator and denominator are integers between 1 and 2020 (including 1
And 2020)?
answer：Blank 1: 2481215||
reduced fraction
If the greatest common divisor of the numerator and denominator of a fraction is 1, the fraction is called a reduced fraction.
For example, 3 / 4, 5 / 2, 1 / 8, 7 / 1 are all reduced fractions.
How many reduced fractions are there? The numerator and denominator are integers between 1 and 2020 (including 1
And 2020)?
answer：Blank 1: 2481215||