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2/12 = m/18 ie 12 x m = 2 x 18 ...

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Q: What is the first step when using cross multiplication to solve the proportion 2 divided by 12 equals m divided by18?

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Cross multiplication IS the correct term!

No. A cross product is just a way of simplifying a proportion. If the cross product aren't equal, it follows logically that the proportion isn't equal.

Easy. Cross multiply to get 2x = 35. Then, divide by two to get 35/2.

Maths!

Multiply the cross products, and see if they are equal. If they are equal, the proportion is true. If they are unequal, the proportion is false.

Related questions

j = 11. cross multiplication

Cross multiplication IS the correct term!

Yes it is. If you use cross multiplication, 3/4 equals 6, while 1/2 equals 4.

A statement that two ratios are equal is called a proportion in math. An example of a proportion is 1/2 equals 2/4. In this proportion, if you cross multiply, you find that 4 x1 is equal to 2 x 2, which is a true statement or proportion.

No. A cross product is just a way of simplifying a proportion. If the cross product aren't equal, it follows logically that the proportion isn't equal.

Cross-simplification is a technique used to simplify the multiplication of fractions. It is possible when the fractions have common factors that can be divided out. For example the multiplication of the fractions 6/2 * 2/5 = (6*2)/(2*5). The 2's can be simplified out so that the multiplication is simply 6/1 * 1/5 = 6/5.

Cross multiplication is when you multiply the denominator of a fraction by the numerator of another fraction. Before you cross multiply you want to see if you can simply the fractions.

Easy. Cross multiply to get 2x = 35. Then, divide by two to get 35/2.

Maths!

Yes, here's how you can show it, for the equivalent proportions a/b & (n*a)/(n*b): a na -=-- b nb Cross multiply: a*n*b ? b*n*a. Because multiplication is commutative, the question mark is an equal sign.

Using reciprocals, a/b divided by c/d is the same as a/b times d/c. If you multiply this, you get ad/bc.Without thinking about this as reciprocals, you can do this multiplication directly, cross-multiplication so to speak.

Subtraction, division, cross multiplication of vectors, multiplication of matrices, etc.