Question

(1 1/8 + 1/8) - 5/4 =

Answer 1

`((11)/(8)+(1)/(8))-(5)/(4)`

When you have an add or a substraction of two fractions with the same denominator you just do the operation as follow:

`((a)/(b)\pm(c)/(b))=(a\pm c)/(b)`

So, the first part (the add) will be:

`(11)/(8)+(1)/(8)=(11+1)/(8)=(12)/(8)`

Then, when you have an add or a substraction of two fractions with different denominator you do the operation as follow:

`((a)/(b)\pm(c)/(d))=(a\cdot d\pm c\cdot b)/(b\cdot d)`

So, the final operation will be:

`((12)/(8)-(5)/(4))=((12\cdot4)-(5\cdot8))/(8\cdot4)=(48-40)/(32)=(8)/(32)`

You can simplify and get the final answer:

`(8)/(32)=(4)/(16)=(2)/(8)=(1)/(4)`Final answer 1/4