randRange( 1, 9 ) / 10 floor( D * 10 )

Express D.toFixed( 1 ) as a fraction.

D

The number T is in the tenths place, so we have cardinal( T ) tenths.

Cardinal( T ) tenths can be written as fraction( T, 10 ).

randRangeExclude(1, 99, [10,20,30,40,50,60,70,80,90]) / 100 floor( D * 10 ) floor( ( D * 100 ) % 10 )

Express D.toFixed( 2 ) as a fraction.

D

The number T is in the tenths place, so we have cardinal( T ) tenths.

Cardinal( T ) tenths can be written as fraction( T, 10 ).

The number H is in the hundredths place, so we have cardinal( H ) hundredths.

Cardinal( H ) hundredths can be written as fraction( H, 100 ).

Add the two parts together.

fraction( T, 10 ) + fraction( H, 100 )

= fraction( T * 10, 100 ) + fraction( H, 100 )

= fraction( T * 10 + H, 100 )