To get the difference between recipes we have to subtract 31/4 - 23/4. When we are subtracting fraction we have to have common denominator - its ok here. Now subtraction will be easy, only subtract numerator, denominator will not change.

- its the result, so in bead recipe is 2 cups more than in muffin.
To get total cups required to cook bread and muffin we have to add 31/4 and 23/4. Its very similar to subtraction.

- the result is 13.5 cups.