9 Answers | Add Yours
If you have mixed numbers, like 3 1/2 x 4 1/3, then you have to make those improper fractions first, then multiply straight across. Such as:
3 1/2 x 4 1/3 = 7/2 * 13/3 = (7*13)/(2*3) = 91/6. If your teacher requires mixed numbers for the answer, then you do that division:
91 `-:` 6 = 15 r1 = 15 1/6
To multiply fractions, multiply the top numbers (numerators). Also, multiply the bottom numbers (denominators).
Before multiplying them, cancel common factors between numerators and denominators. Since the numerator 3 and denominator 27 are multiples of 3, then cancel the factor 3.
Now that the common factors are cancelled, proceed to multiply. And the resulting product is already in simplified form.
Hence, `3/5xx2/27 =2/45` .
To multiply fractions you can either cross multiply them and then multiply the remaining numbers in the same way or you can multiply the numerators with one another and the denominators with one another and then cancel out, either way the answer will be the same. For example, multiply 9/5 and 10/27.
`9/5 * 10/27`
cross multiply 5 with 10 and 9 with 27
`1/1 * 2/3`
`2/3 or 0.67`
Now take into account the second method,
`2/3 or 0.67`
Multiply the numerators together to get the numerators and multiply the denominators together, just straight across.
To multiply fractions you don't need to have the same denominators but you can simplify
Just multiply straight across
3/5 x 2/3
3 x 2 / 5 x 3
You can divide this by 3
That's how you multiply
Multiply straight across the numerator and straight across the denominator
To multiply fractions you just have to multiply the numerators together to get the numerators and multiply the denominators together to get the denominator
For example ,
3/6 X 2/3 = 6/18
since 3 and 2 are the numerators, you will have to multiply those two
since 3 and 6 are the denominators, you will have to multiply those two.
multipy straight across
`2/5 xx 7/3 = (14)/(15)`
you can multiply fractions in this manner ;
w/x*y/z = w*y/x*z
first multiply the numerators then multiply the denominators . And later divide the answers .
We’ve answered 319,639 questions. We can answer yours, too.Ask a question