Express the following fraction in lowest terms.
start fraction 18 over 42 end fraction
(1 point)
Responses
start fraction 9 over 21 end fraction
Image with alt text: start fraction 9 over 21 end fraction
start fraction 6 over 14 end fraction
Image with alt text: start fraction 6 over 14 end fraction
start fraction 1 over 3 end fraction
Image with alt text: start fraction 1 over 3 end fraction
start fraction 3 over 7 end fraction
Image with alt text: start fraction 3 over 7 end fraction
Start fraction 3 over 7 end fraction
Express the following fraction in lowest terms.
15 over 75
(1 point)
Responses
1 over 6
Image with alt text: 1 over 6
3 over 14
Image with alt text: 3 over 14
1 over 5
Image with alt text: 1 over 5
2 over 5
Start fraction 1 over 5 end fraction
To express the fraction 18/42 in lowest terms, we need to find the greatest common divisor (GCD) of 18 and 42. Then, we can divide both the numerator and denominator of the fraction by the GCD.
The factors of 18 are: 1, 2, 3, 6, 9, 18.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.
The greatest common divisor of 18 and 42 is 6.
Dividing both the numerator and denominator of 18/42 by 6, we get:
18/6 = 3 and 42/6 = 7.
Therefore, the fraction 18/42 can be expressed in lowest terms as 3/7.