Answer:
3/10 and 2/5 = 3/10 and 4/10
1/3 and 3/4 = 4/12 and 9/12
Explanation:
For 3/10 and 2/5
* Find the lcm (least common multiple) of the denominators which are 10 and
5. The multiples of 10 are: 10, 20, 30 etc and the multiples of 5 are: 5, 10 15,
etc. So, the lcm is 10. It is the smallest multiple that the denomitaotrs share.
* Next multiply the numerators (3 and 2) by whatever number you use to
multiply the denominator by to get 10. For 3/10, the denominator stayed the
same, so to get 10, you need to multiply 10 by 1. Do the same for the
numerator. 3 x 1 = 3. So, the first factor pair is 3/10.
* The second factor pair is 2/5, so we are still using the lcm of 10. So, what
do you need to multiply 5 by to get 10? The answer is 2. Now just multiply
the numerator (2) by 2 and you get 4. The second factor pair is now 4/10.