What is 1 1/4-5/6 PLEASE HEL

here you go. I can explain if you want.

Firstly,you have to change the 1 1/4 to an improper fraction, by multiplying the denominator to the whole number then adding the answer to the numerator.

1×4+1 which equals to 5

so we now have 5/4

Secondly, we have to find a number that the denominators are both factors of. The answer to that is 12 because both four and six are factors of 12.