Answer:
= 1/7
Step-by-step explanation:
You must first do 1/4 + 4/7
change both to have the same denominator which would be 28. Multiply 1/4 by 7/7. Multiply 4/7 by 4/4
7/28 + 16/28
23/28
now you have
27/28 - 23/28
which equals (27-23) / 28
4 / 28
which Can be simplified to
1/7
