Praxis Mathematics CKT 7813 Domain 3: Fractions, Operations with Fractions, and Ratios

If \( \frac{5}{8} \) of a number is 15, what is the number?

What is the sum of \( \frac{2}{3} \) and \( \frac{4}{5} \)?

What is \( \frac{7}{8} \) divided by \( \frac{5}{6} \)?

A recipe requires \( \frac{3}{4} \) cup of sugar. If the amount is increased by 50%, how much sugar is needed?

What is the product of \( \frac{2}{7} \) and \( \frac{5}{9} \)?

If \( \frac{1}{x} = \frac{3}{4} \), what is the value of \( x \)?

What fraction lies exactly halfway between \( \frac{1}{3} \) and \( \frac{1}{2} \)?

In a class of 30 students, \( \frac{2}{5} \) are wearing glasses. How many students are wearing glasses?

If \( \frac{3}{8} \) of a number is 9, what is three times the number?

A number \( x \) is increased by \( \frac{1}{5} \) of its value. The new value is \( \frac{6}{5} \) of \( x \). What is the original number \( x \)?

What is \( \frac{2}{3} \) of \( \frac{3}{4} \)?

If \( \frac{4}{x} = \frac{8}{12} \), what is the value of \( x \)?

What is the reciprocal of \( \frac{2}{7} \)?

Which of the following is equivalent to \( \frac{3}{4} : \frac{5}{6} \)?

If \( 3x = \frac{2}{5} \) and \( 2y = \frac{3}{4} \), what is \( \frac{x}{y} \)?

A fraction is reduced to \( \frac{3}{4} \) when both the numerator and denominator are reduced by 6. What is the original fraction?

What is the result of subtracting \( \frac{1}{3} \) from the product of \( \frac{2}{5} \) and \( \frac{5}{8} \)?

In a ratio \( \frac{a}{b} = \frac{3}{5} \), if \( a + b = 16 \), what is the value of \( a \)?

If \( \frac{2x}{3} = \frac{3}{4} \), what is the value of \( x \)?

Which of the following is the greatest: \( \frac{3}{4}, \frac{5}{6}, \frac{7}{8}, \text{ or } \frac{9}{10} \)?