Lara multiplied 4/13 times 3 and got 12/39. Was her answer correct?
A No she should have multiplied only the numerator by the whole number
B Her answer was correct, but she did noy write it in simplest form
C Yes, her answer was correct
D No, she should have multiplied only denominator by the whole number.
D No, she should have multiplied only denominator by the whole number.
To determine if Lara's answer is correct, we need to solve the multiplication correctly.
Lara multiplied 4/13 by 3:
(4/13) * 3 = (4 * 3) / 13 = 12/13.
Comparing this to Lara's answer, she got 12/39.
Since the denominator in Lara's answer is incorrect, her answer is not correct.
Hence, the correct option is D: No, she should have multiplied only denominator by the whole number.
To determine if Lara's answer is correct, we need to perform the multiplication correctly and compare the result.
Lara multiplied 4/13 by 3. To multiply a fraction by a whole number, we multiply the numerator of the fraction by the whole number and keep the denominator the same.
So, 4/13 multiplied by 3 would be (4 * 3) / 13 = 12/13.
Now let's compare Lara's answer of 12/39 to 12/13:
To simplify 12/39, we can divide both the numerator and the denominator by their greatest common divisor (gcd). In this case, the gcd of 12 and 39 is 3.
Dividing both the numerator and denominator by 3, we get: (12/3) / (39/3) = 4/13.
Comparing 4/13 with Lara's answer of 12/39, we can see that they are NOT the same.
So, the correct answer is D) No, she should have multiplied only the denominator by the whole number.