There is no ideal simple English word for a proportioned part of a whole. nostr:npub1l2vyh47mk2p0qlsku7hg0vn29faehy9hy34ygaclpn66ukqp3afqutajft has just used the term "fraction" but this is easily confused with things like 15/64 versus a decimal number. Often people use the term "percentage" but this forces additional meaning concerning a division into 100 pieces. "Part" doesn't confer the meaning that it is proportioned, and "portion" ... well, maybe that is right but isn't commonly used (is it right?). This was a persistent problem for me in trying to name a Type in a game I was developing that was a floating point number between 0.0 and 1.0.