Question

Va rog sa ma ajutati la acest exercițiu 5-(1supra2+1supra15+1supra30)×5=

Answer 1

5-1/2+1/15+1/30×5=5/1-1/2+1/15+1/30×5=(amplificam pe 5/1 cu 2)

5/2+1/2+1/15+1/30×5=

6/2+1/15+1/30×5=

(Amplificam pe 6/2 cu 15 si pe 1/15 cu 2)

80/30+2/30+1/30×5=

82/30+1/30×5=

83/30×5/1=

415/30