In my opinion, it is because without you'll be stuck thinking and thinking for possibly minutes. Hope you take my advice.
no
definition of multiplying fractions?
Same as adding, multiplying, and dividing.
When multiplying fractions, it is not necessary to find the LCD first.
Some people find rational fractions easier, others prefer decimals fractions. For some purposes rational fractions are simpler, for others decimals are easier. So there is no simple answer.
Multiplying fractions is all about division
When you're dividing fractions ... or multiplying thrm ... they don't need to have the same denominator.
Multiplying by 100 is easier. Just move the decimal point two places to the right.
In the context of multiplying fractions, the term "proper shape" refers to the format in which the fractions are written before performing the multiplication operation. When multiplying fractions, it is essential to ensure that the fractions are in their simplest form, with no mixed numbers or improper fractions. This simplifies the calculation process and allows for easier manipulation of the numerators and denominators during multiplication. Therefore, maintaining the fractions in fraction form ensures accuracy and efficiency in the multiplication process.
no. you can multiply straight across in fraction multiplication
Multiplying fractions is quite different from adding them. You just multiply the numberators and the denominators separately. You can find the common denominator if you like, but in the end (after simplifying), you'll get the same result, and the additional work of finding the common denominator and converting the fractions turns out to be unnecessary. Try it out for some fractions!
Fractions and decimals are usually rational numbers. Besides, multiplying rational and irrational numbers is also similar.