We have 33 gallons of flat paint and 57 gallons of high-gloss paint.
The total gallons sold is the sum of these two.
![total\; gallons=33+57=90](https://img.qammunity.org/2023/formulas/mathematics/college/w1pysegs2m1abt9l61nikf40j465t0c3k8.png)
The ratio of gallons of high-gloss to the total gallons sold is given by
![ratio=(high\; gloss\; gallons)/(\; total\; gallons)=(57)/(90)](https://img.qammunity.org/2023/formulas/mathematics/college/khisce87ymkmixyyi9bmay7topmnoii3u9.png)
Simplify the ratio to the lowest terms by dividing with 3
![ratio=(57)/(90)=(19)/(30)](https://img.qammunity.org/2023/formulas/mathematics/college/dwszxj1x8r3co9b3l4gryz5dbf05neac2d.png)
Therefore, the ratio of gallons of high-gloss to the total gallons sold is 19/30