I might be wrong but I think zeptosecond comes first then s nanosecond and then a millisecond.
X = 2 + √42,2- √42
decimal form: 8.480741, -4.480741
sorry if my answer isn't right
(2/3),=(1/2), 3,4
.
............................
50:
40 is 10 less than 50
60 is 10 more than 50