Question

Efectueaza inmultirea dupa introducerea intregilor in fractie:

a) 2 1 supra 3 * 9 supra 28
b) 5 3 supra 8 * 1 5 supra 43
c) 14 * 1 3 supra 6 * 13 supra 27 * 1 supra 26 * 10 supra 15 * 2 4 supra 7

Dau coroana

Answer 1

...........................

Answer 2

a) 2 si 1/3 * 9/28 = 7/3 * 9/28 = 3/4
b) 5 si 3/8 * 15/43 = 43/8 * 15/43 = 15/8
c) 14 * 1 si 3/6 * 13/27 * 1/26 * 10/15 * 2 si 4/7 = 14 * 1 si 1/2 * 13/27 *1/26 * 2/3 * 18/7 = 14 * 3/2 * 1/27 * 1/2 * 2/3 * 18/7 = 2/3