7/8-1/2
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1/2 = 4/8 so  7/8- 4/8 = 3/8

Step-by-step explanation:

3/8

Step-by-step explanation:

find greatest common factor wich will be 8, u need to multiply 2 by another number to get the denominator of 8

8÷2=4 so 2×4=8

multiply 1/2 by 4 to get a denominator of 8 and numerator of 4

now u have 7/8 -4/8 =3/8

part 1 answer = 8

part 2 answer = 72

step-by-step explanation:

part 1 explanation = add all of the numbers, then divide by how many numbers you have. so, 200/25 = 8.

part 2 explanation = not gonna lie, this is hard to explain, so just google how to do it.