Add the following rational numbers:

(i)and (ii)and (iii)and

(iv)and (v)and (vi)and

(i)

(ii)

(iii)

To convert it into lowest terms, divide both numerator and denominator by common divisor of both 6 and 8 that is, 2

(iv)

To convert it into lowest terms, divide both numerator and denominator by common divisor of both 6 and 3 that is, 3.

=2

(v)

To convert it into lowest terms, divide both numerator and denominator by common divisor of both 4 and 6 that is, 2.

(vi)

To convert it into lowest terms, divide both numerator and denominator by common divisor of both 18 and 15 that is, 3.