4/4:5/8

Interpret as the ratio (4/4) : (5/8).

• 4/4 = 1, so the ratio is 1 : 5/8.
• Clear the fraction by multiplying both parts by 8: 8 : 5.

So, the simplified ratio is 8:5 (which equals 8/5 = 1.6 as a single value).