US$1.27 is S$1.80, which is the most expensive fare the MRT can get
you. If you want the cheapest options, it'll be US$0.30 for K.L.
and US$0.48 for Singapore.
There might be an error in the original author's comparison.
2 Stops
MRT (SG): SGD 0.90
MTR (HK): SGD 0.728 (HKD 4)
4 stops
MRT (SG): SGD 1.10
MTR (HK): SGD 0.91 (HKD 5)
5 stops
MRT (SG): SGD 1.30
MTR (HK): SGD 0.91 (HKD 5)
9 stops
MRT (SG): SGD 1.30
MTR (HK): SGD 1.365 (HKD 7.5)
These are published rates without the discounts, it would be
unfair to factor in the discounts because MTR has it's own system
of discounts. For short distances MTR (HK) is cheaper, whereas MRT
(SG) is cheaper for longer distances (provided no LRT is used).