there are no such things as equal decimals (at least that is what i think correct me if i am wrong)
two decimals equal to 0.8 = 0.80, 0.800
two decimals that are equal to 3.7 = 3.70, 3.700
two decimals are equal to 0.9 = 0.90, 0.900
The two you ask about equal 0.48. No others do.
0.5
0.8, 0.800
50.20 and 50.200
3.9 + 4.2
They are: 3.7 and 3.70
.80
When their fractional parts are equal.
2 * 5