Could you provide examples from real-life scenarios where the subtraction of mixed fractions is commonly applied?

Subtraction of mixed fractions is commonly applied in various fields like cooking, construction, financial calculations, healthcare, time management, production and transportation. For example, in transportation, if delivery truck starts with 20 and 1/2 gallons of fuel. If 5 and 3/4 gallons are used during the journey, by subtracting 5 3/4 from 20 1/2 gives the remaining fuel which is 14 and 3/4 gallons.