Question

Find: (i) (-3/5) + (-2/7) (ii) (-2/7) -
(-3/14) (iii) (- 4/ 9) = (- 2/3)​

Answer 1

I. 1/5

II. -1/14

III. 2/9

Explanation:

(i) (-3/5) + (-2/7)

Opening up the bracket;

3/5 - 2/5 =

Lowest common multiple (LCM) = 5

(3 - 2)/5

= 1/5

(ii) (-2/7) - (-3/14)

Opening up the bracket;

-2/7 + 3/14 =

Lowest common multiple (LCM) = 14

(-4 + 3)/14 = -1/14

(iii) (-4/ 9) = (- 2/3)

Rearranging the fraction, we have;

-4/9 + 2/3 =

Lowest common multiple (LCM) = 9

(-4 + 6)/9 = 2/9