[NOTE: My tutoring is highly individualized. My multi-strategy problem solving approach leads to best results with fine-tuning to individual student’s weaknesses and strengths.]
Solution 1:
A family of four (4) ordered a pizza. They wanted to eat equal parts of pizza, which then be 1/4 of it.
When pizza was delivered, it was sliced in eight (8) pieces, each 1/8 of pizza.
Each of the family of 4 got the first slice = 1/8 of the pizza, ate it and
took another slice = 1/8 of the pizza.
So we see that each of them ate equal part, which is 1/4 of the pizza, having two slices of 1/8 of it.
We can conclude that 1/4 is equal to two 1/8.
Answer: 1/4 is greater than 1/8.
Solution 2:
To compare two fractions, we need to have them with the same denominator.
As 8 is twice 4, the Least Common (same) Denominator is 8.
As value of the transformed fraction should be preserved, we multiply both the numerator and the denominator of 1/4 by 2.
1*2 / 4*2 = 2/8
1/4 = 2/8 is greater than 1/8, because the denominator is same and the numerator of the first fraction is greater.
Answer: 1/4 is greater than 1/8.
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Solution 3:
1/4 is greater than 1/8, because they have the same numerator, but the second fraction has greater denominator (dividing same into greater number of parts).
Answer: 1/4 is greater than 1/8.
[NOTE: Presented solution(s) depend on the School Grade the student is in, on student's strength in Math, and on the stage of my teaching. I have experience to presenting all three solutions to the same student, making an underperformer a Math-loving kid.]