Jari has 3 gallons of vinegar and uses \(\frac{7}{4}\) gallons for cooking. What fraction of a gallon does Jari have left?

["How Much Vinegar Does Jari Have Left After Cooking?", "Jari starts with 3 gallons of vinegar and uses (\frac{7}{4}) gallons in the kitchen. If you’re asking how much vinegar remains, this simple fraction subtraction helps clarify the answer.", "### Start with the Total and Subtract What Was Used", "Jari’s initial amount is:\n[\n3 \ ext{ gallons} = \frac{12}{4} \ ext{ gallons} \quad \ ext{(since 3 = 12/4)}\n]", "Jari uses:\n[\n\frac{7}{4} \ ext{ gallons}\n]", "### Perform the Subtraction:\n[\n\frac{12}{4} - \frac{7}{4} = \frac{5}{4} \ ext{ gallons}\n]", "This means Jari has (\frac{5}{4}) gallons of vinegar left.", "### What Does (\frac{5}{4}) Gallons Mean?", "(\frac{5}{4}) is an improper fraction, which equals 1 ( \frac{1}{4} ) gallons — a useful way to visualize the leftover amount.", "### Conclusion", "After using (\frac{7}{4}) gallons from 3 gallons, Jari has (\frac{5}{4}) or 1.25 gallons of vinegar remaining. This quick subtraction shows how fractional measurements help manage groceries and recipes efficiently.", "Key takeaway:\n3 gallons – (\frac{7}{4}) gallons = (\frac{5}{4}) gallons = 1 ( \frac{1}{4} ) gallons left.", "This real-life example proves vinegar leftovers are simple to calculate using fractions!"]