hi
i have tested your 1+silk_numerator/silk_denominator*1.5
on the v6 and v7 at the same time and both gave the same value.
the only time different was when i first tried because i did not set the bot to download the silks in the v7, but after i set it to download the silks, then the values were the same.
it could be some other condition that has not converted from v6 to v7.
could you include the trigger, not the full set of triggers, that contains this condition.
mcbee