(a) Express 5/16 as a (i) decimal fraction, (ii) percentage. (b) Simplify (i) 27^(2/3) - (1/8)^(1/3), (ii) 3 4/5 - (1 2/3 + 7/15), giving the answer in its lowest terms.

Model answer

(a)(i) 0,3125; (a)(ii) 31,25%; (b)(i) 8 1/2; (b)(ii) 1 2/3

Also accepted: 0.3125; 31.25%; 8 1/2; 1 2/3, 0,3125; 31,25%; 8 1/2; 1 2/3, 0.3125; 31.25%; 8.5; 5/3, 0,3125; 31,25; 8,5; 5/3

ZIMSEC Mathematics 4028/2, June 2015, Q1, via the Topical Collection

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