Answer:
1/12
Step-by-step explanation:
you need to make sure that they have a common denominator before doing anything.
Find the lowest common multiple (lcm), which would be 12 (3 x 4 = 12)
So then, put 12 as both denominators, and subtract.
7/12 - 9/12 is equal to 28/12 - 27/12, because 3 miltiplied by 4 equals 12, therefore you mutiply the 7 by the 4, and 4 miltiplied by 3 equals 12, therefore you multiply the 9 by the 3.
Sorry if this is confusing, i tried explaining as best i could! Hope this helped!
It is a rational number, because it's a terminating decimal and as such can be expressed as a fraction the numerator and the denominator of which are integers.
Answer: B not sure if I’m right though .
Step-by-step explanation:
The Sum of all the siblings ages are 36.
Explanation:
Your sister was half your age(3).
Your brother was twice your age(12).
It says 5 years later...
so then your sister is 8
brother is 17
your 11.
When you add all of these ages up you get the answer 36.
