Question

(ii) Find 2/5 × −3/7 + 1/14 − 3/5 × 3/7 ?

Answer 1

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Now

2/5 * - 3/7 - 1/14 - 3/7 * 3/5

= (2/5) (- 3/7) - 1/14 - ( 3/7) (3/5)

= - 6/35 - 1/14 - 9/35

= (-12 - 5 - 18)/70, since LCM (35, 14, 35)

= 70

= - 35/70

= - 1/2