MathCastle
Grade 4SuperchallengeDecimals to Hundredths

Decimals to Hundredths · Superchallenge problem

Owen writes each of the 9999 fractions 1100,2100,3100,…,99100\dfrac{1}{100}, \dfrac{2}{100}, \dfrac{3}{100}, \ldots, \dfrac{99}{100} in simplest form. How many of them end up with a denominator of 1010 or less?