bsidwell has a point, but it's not necessary to alter the time signature to account for triplets, because the notation system we use allows for them already.
The only difficulty people usually have with x/4 and 2x/8 is 3/4-6/8, because the difference between a fast 3/4 and a slower 6/8 is literally the difference between a strong and not-quite-strong pulse.
The only difficulty people usually have with x/4 and 2x/8 is 3/4-6/8, because the difference between a fast 3/4 and a slower 6/8 is literally the difference between a strong and not-quite-strong pulse.