Addition and subtraction of fractions What is 5 / 6ab-2 / 3aC + 3 / 4abc

Addition and subtraction of fractions What is 5 / 6ab-2 / 3aC + 3 / 4abc

5/6ab-2/3ac+3/4abc
=10/12ab-8/12ac+9/12abc
=10c/12abc-8b/12abc+9/12abc
=(10c-8b+9)/12abc