Question

Express the following rational numbers with positive
denominator.
a) 12
−13

b) −21
−31

Answer 1

Answer:

a)-12/13

b)21/31

Step-by-step explanation:

in a move the negative sign from denominator to numerator. in b just cancel negative terms

Answer 2

Answer:

Step-by-step explanation:

Multiply numerator as well as denominator with -1 to get a positive denominator.