Art of Problem Solving
AoPS Online
Math texts, online classes, and more
for students in grades 5-12.
Visit AoPS Online ‚
Books for Grades 5-12 Online Courses
Beast Academy
Engaging math books and online learning
for students ages 6-13.
Visit Beast Academy ‚
Books for Ages 6-13 Beast Academy Online
AoPS Academy
Small live classes for advanced math
and language arts learners in grades 2-12.
Visit AoPS Academy ‚
Find a Physical Campus Visit the Virtual Campus

2021 JMC 10 Problems/Problem 1

Problem

What is the value of \[\dfrac{20}{2\cdot1} - \dfrac{2+0}{2/1}?\] $\textbf{(A) } 3 \qquad\textbf{(B) } 7 \qquad\textbf{(C) } 8 \qquad\textbf{(D) } 9 \qquad\textbf{(E) } 13$

Solution

We have $\frac{20}{2\cdot 1} - \frac{2+0}{2/1} = 10-1 = 9.$

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=2021_JMC_10_Problems/Problem_1&oldid=150761"