GRE Arithmetic: Fractions (Part 5 of 5)

This video tutorial covers the comparison of fractions, including those with non-integer numerators or denominators. It explains how to find common denominators for comparing two or more fractions and introduces methods for handling fractions with non-integer components like pi. The tutorial also demonstrates complex operations involving fractions, emphasizing simplification and correct operation order.

What is the first step in comparing two fractions like 3/7 and 7/12?

• Find a common denominator

• Multiply the numerators together

• Add the fractions

• Find a common numerator

When comparing three fractions, what is a faster method than finding a common denominator for all?

• Compare two fractions at a time

• Add all fractions together

• Multiply all numerators

• Divide the largest fraction by the smallest

How do you handle fractions with non-integer numerators or denominators?

• Convert them to decimals

• Treat them like regular fractions

• Only add them, never multiply

• Ignore the non-integer parts

What is the result of multiplying pi/2 by pi/3?

• pi over 3

• pi squared over 3

• pi over 6

• pi squared over 6

What is the first step in simplifying the expression 3/4 + 1/7 * -2/5?

• Find a common denominator for 3/4 and 1/7

• Add the fractions

• Subtract the fractions

• Multiply the fractions

In the expression 3/4 + 1/7 * -2/5, what can be reduced before multiplying?

• Numerator 3 with denominator 4

• Numerator 25 with denominator 5

• Numerator 2 with denominator 5

• Numerator 1 with denominator 7

What is the final result of simplifying the expression 3/4 + 1/7 * -2/5?

• 5 over 14

• 14 over 5

• Negative 5 over 14

• Negative 14 over 5