20 General utilities library [utilities]

20.16 Compile-time rational arithmetic [ratio]

20.16.4 Arithmetic on ratios [ratio.arithmetic]

Table 58: Expressions used to perform ratio arithmetic [tab:ratio.arithmetic]

🔗	Type	Value of X	Value of Y
🔗	ratio_add<R1, R2>	R1::num * R2::den +	R1::den * R2::den
🔗		R2::num * R1::den
🔗	ratio_subtract<R1, R2>	R1::num * R2::den -	R1::den * R2::den
🔗		R2::num * R1::den
🔗	ratio_multiply<R1, R2>	R1::num * R2::num	R1::den * R2::den
🔗	ratio_divide<R1, R2>	R1::num * R2::den	R1::den * R2::num