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If you start with a fraction p/q and are told that x/y is an equivalent fraction, then the simplest check is to cross-multiply: p*y must be equal to q*x.

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Why can you use fraction multiplication to check the answer to a fraction division problem?

You can use fraction multiplication to check a fraction division problem because dividing by a fraction is equivalent to multiplying by its reciprocal. For example, if you need to solve ( \frac{a}{b} \div \frac{c}{d} ), you can multiply ( \frac{a}{b} ) by ( \frac{d}{c} ). If your division is correct, the result of this multiplication will match your original answer. Thus, verifying the answer through multiplication provides a reliable check.


Why you can use multiplication to check a division problem?

multiplication is the Inverse operationof division so it could be used to check my work


Which operation should be used to check the answer to a division problem?

Multiplication


Why can multiplication be used for solving division?

so when you find your answer you can check it by using multiplication.


How do you test if the fraction are equivalent?

You can check by cross-multiplication. For example, to check whether 1/2 is equivalent to 3/6, multiply 1 x 6 = 6, and 2 x 3 = 6 (the numerator of each fraction with the denominator of the other fraction). Since in this case the results are equal, the two fractions are equivalent.


How do you know when a pair of fractions have the same product?

For example, you can do the multiplication in both cases, simplify each product to simplest terms, and compare. Or, after doing the multiplication, check the product of the numerator of one fraction by the denominator of another fraction - if you get the same product both ways, the products are equivalent.


How can i use multiplication to check division?

u can go plus pluse pluse


How do you check addition with division?

You don't. You can check addition with subtraction or subtraction with addition, since subtraction is the opposite of addition. Similary, you can check division with multiplication, or vice versa.


How can you use multiplication to check a division problem?

we can multiply the divisor & the quotient to find the dividend


Why was division invented?

I think they invented it to do bigger mathscales, and to check multiplication because they are inverse operations.


How do you check multiplication using division?

You could divide the answer into the larger number of the problem. The answer should be the remaining number (multiplicand).


What fraction is equivalent to fifteen thirty fifths?

36spell check your answers