Question

\frac{ - 5}{9} + \frac{2}{7}9−5​+72​

Answer 1

Answer:

Addition:

(a/b) + (c/d) =(ad+bc)/bd

Subtraction:

(a/b) – (c/d) =(ad-bc)/bd

Multiplication:

(a/b) . (c/d) = ac/bd

Division

(a/b) / (c/d) = ad/bc