Solve your problems ...
Pre-K
Arithmetic
Algebra
Pre-Calculus
Calculus
Games
New! - Multiplication game - catch the hodag!
Adding and subtracting with negatives activity
Factoring Game
How to solve:
One method for solving these problems is outlined here. To see another method (cross-multiplying), click
here
.
Problem:
(
3
/
5
) = (
x
/
20
)
1. Find what the bottom was multiplied by:
5
*
4
=
20
Multiplying factor = 4
2. Use the multiplying factor to find the value of x:
3
/
5
= (
3
*
4
) /(
5
*
4
) =
12
/
20
3. Final Answer:
x = 12.
Here's one to try:
(Starts timer)
Copyright © 2017