Write this ratio as a fraction in simplest form without any units. 20 quarts to 7 gallons

Answer 1

20/7 involves units

20/28 is unit-less 4 quarts to a gallon so 7 gallons = 28 quarts

so 20/28 could be 20 quarts to 28 quarts or 20 gallons to 28 gallons or any other units, liters, cups, teaspoons or tons or pounds of whatever liquid you want.

simplest though is 5/7 or 5:7, as 20/28 = 5(4)/7(4) = 5/7