Question

After completing a fraction division problem, Clarice used multiplication to check her answer. Division: 7 and one-half divided by 1 and one-half = 5. Check: 5 times 1 and one-half = 5 and one-half. Could Clarice verify her answer? Explain.

Answer 1

Answer:

No. Clarice’s answer does not equal the dividend. She did not change the mixed number into an improper fraction before multiplying.

Step-by-step explanation:

I did it and this was the response :)

Answer 2

Answer:

No. Clarice’s answer does not equal the dividend. She did not change the mixed number into an improper fraction before multiplying.

Step-by-step explanation:

Given: After completing a fraction division problem, Clarice used multiplication to check her answer. Division: 7 and one-half divided by 1 and one-half = 5. Check: 5 times 1 and one-half = 5 and one-half.

Find:  Could Clarice verify her answer? Explain.

Write both fractions as improper fractions.

$7\frac{1}{2}$ is $\frac{15}{2}$ (fifteen halves);

$1\frac{1}{2} =\frac{3}{2}$ (three halves).

Now the problem is effectively $\frac{15}{3}$ because the dividend and the divisor are both in terms of halves. You might as well consider calves instead of halves, because the answer will still be $\frac{15}{3} =5$

However the check should be 5 times $1\frac{1}{2}$ = $5+\frac{5}{2}$ (five plus five halves)=

$5+2\frac{1}{2}$ = $7\frac{1}{2}$ .

So Clarice got it wrong.

#SPJ3