Question

Calculati si scrieti rezultatul sub forma de fractie ireductibila:

a) 2.5 * 4 supra 15
b) 2 intregi 1 supra 2 *0,25*4 supra 5
c) 2,(4)* 7 supra 33 * 5 supra 7

Answer 1

a) 2.5 × 4/15=25/10× 4/15=5/2× 4/15=2/3

b) 2 intregi 1/2 ×0,25×4/5=5/2 ×25/100×4/5=5/2 ×1/4×4/5=1/2

c) 2,(4) × 7/33 ×5/7 =(24-2)/9 × 5/33 = 22/9 × 5/33 = 2/9× 5/3 =10/27=0,(370)