Fraction Division5: x ÷ a/b (Quotitive)

(a) How many groups of 1/5 are there in:   (i) 1;  (ii) 2; (iii) 5; (iv) 2/3; (v) 1⅔. (b) How many groups of 1⅓ are there in:   (i) 1;  (ii) 2; (iii) 4;  (iv) 3/5; (v) 5+3/5. In general, how would you calculate x ÷ a/b?
Anthony Or. GeoGebra Institute of Hong Kong. (中文版:http://www.geogebratube.org/student/m116499 ) orchiming@gmail.com