Question

what is cross multiplication method?​

Answer 1

Answer:

method of cross-multiplying means that we multiply the numerator of each (or one) side by the denominator of the other side, effectively crossing the terms over: The mathematical justification for the method is from the following longer mathematical procedure.

Answer 2

Answer:

The cross multiplication method for solving linear equations in two variables. This is the simplest method to solve them and gives us the accurate value of the two variables.

Step-by-step explanation:

Unlike fractions can be compared using cross-multiplication.

Compare 3⁄7 and 5⁄8 using cross-multiplication.

changing the denominators to the product of both the denominators

So, the denominator of both the fractions becomes 7 × 8 = 56

Now, we use cross-multiplication, to find the numerators. First, we multiply the numerator of the first fraction with the denominator of the second fraction.

3 × 8 = 24          

So, the first fraction becomes: 24⁄56

Next, we multiply the numerator of the second fraction by the denominator of the first fraction.

5 × 7 = 35

So, the second fraction becomes: 35⁄56

Since  24⁄56 < 35⁄56  

Therefore, 3⁄7 < 5⁄8