You can enter a quantity as a decimal, a simple fraction, or a mixed number. Use the quantity field for the amount and the unit field for its unit so the two can be checked separately.
Write the quantity clearly
Common forms include 0.5, 1/2, ½, 1 1/2, and 1½. The last two represent one and a half. A fraction needs a nonzero denominator, and a recipe quantity must satisfy the field’s allowed range.
Use a decimal point in the English interface. If an entry cannot be interpreted, correct the highlighted field instead of relying on a result left over from a previous value.
Choose fractions or decimals
Fractions are convenient for spoon and cup measures; decimals can be easier to read on a scale. Changing the display mode changes how the result is written. It should not change the original amount or the serving factor.
A quarter of a teaspoon scaled by 1.5 is three eighths of a teaspoon, or 0.375 tsp. Both describe the same calculation. If the selected display rounds that result, keep the approximate indication visible.
Return to the original for each calculation
BatchLadle scales from the original row values. It should not take a rounded result, multiply it again, and gradually move away from the recipe.
For example, one third multiplied by four thirds is four ninths. Rounding an intermediate value to two decimal places and reusing it would produce a different result. Change serving counts freely, then choose a readable presentation at the end.
Make the final practical choice yourself
A displayed quantity may be smaller than your equipment can measure reliably. You can choose a practical amount, but record that adjustment as your decision. It is different from an exact unit conversion.
Check small quantities such as salt, yeast, and leavening individually. A whole-gram display can obscure a substantial part of a small original quantity. The tool does not know the resolution or accuracy of your scale.
Keep ranges separate
A range such as 1–2 tablespoons is not the same as a single fraction. Review it explicitly or keep it as a note. “To taste” has no numeric quantity to multiply, so retain the instruction instead of turning it into zero.