Consider the right rectangular pyramid and the slices described. • Slice A: a slice made with a plane through the top of the pyramid and perpendicular to the base of the pyramid
Slice B: a slice made with a plane parallel to the base of the pyramid
Which shapes could be formed from the slices?

2/3 = 8/12 and 3/4 = 9/12

Step-by-step explanation: You need to find the LCD (Least Common Denominator) by listing the factors. For example: 1/3 and 4/5

3: 3, 6, 9, 12, 15 ect.

5: 5, 10, 15, 20, 25 ect.

The lowest number they both have in common is 15.

Do that with the 3 and 4 from 2/3 and 3/4

3: 3, 6, 9, 12

4: 4, 8, 12, 16

The LCD there is 12.

Now you have 2/12 and 3/12

You need to multiply the top number (2 in 2/12) by 4 (which is 8), since thats what we did to get 12 on the bottom number.

Next do that with the other fraction.

Now you have 8/12 and 9/12!

Sorry if it is a little unclear, its kinda hard to explain.