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kap26 [50]
3 years ago
9

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

Mathematics
1 answer:
Sholpan [36]3 years ago
5 0

Answer:

I. 1/5

II. -1/14

III. 2/9

Step-by-step 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

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