When helping your child, talk through and decide which strategy would help them figure which fraction is larger or smaller. The key is figuring out when to use which strategy.
Each strategy can't be used on all comparisons- for example: 3/4 and 7/8 are both 1 away from the landmark #1. Landmark fractions wouldn't help.
However, it may be easier for your child to visualize the pieces (which most kids see the whole is broken into smaller pieces when looking at 8 in the denominator than the 4 big pieces). Then, the visualize either the shaded pieces or the 1 piece that isn't. Depends on how the child looks at the fraction.
Some students would change 3/4 to an equivalent fraction: 3/4 x 2 = 6/8 so that both fractions have the same denominator. Then, they could compare the numerator (top #) of 7/8 and 6/8 and realize 7/8 is bigger.
Hope this helps!!
