Cross Multiply Calculator

Cross multiply calculators multiplies two fractions.

What Is a Cross Multiply Calculator?

A Cross Multiply Calculator is an online tool that multiplies two fractions using cross-multiplication and finds the unknown variable in it. Cuemath's cross multiply calculator helps you to calculate the unknown value faster and displays the result within a few seconds.

Note: Enter values up to 3 digits.

How to Use the Cross Multiply Calculator?

Follow these steps to use the calculator and find the value of the unknown value:

• Step 1: Enter the values in fraction 1 and fraction 2 input boxes, leaving one value to be found as 'blank'.
• Step 2: Click on "Calculate" to cross-multiply the fractions and find the unknown value.
• Step 3: Click on "Reset" to clear the fields and enter a new set of values.

What is Cross Multiplication?

Cross multiplication is a process involving two fractions where in three values are known and one value in unknown. We multiply the numerator of one fraction to the denominator of the other fraction. In this way, the unknown value is found.

Solved Example:

Find the value of 'x' using the cross multiplication method.

7/x = 14/18

Solution:

Using cross-multiplication, we get:

7 × 18 = x × 14

126 = 14x

x = 126/14

x = 9

Therefore, the value of x is 9.

Now, use the calculator and find the unknown value in the following fractions:

• 2/3 and x/6
• 7/9 and x/18