Question

arati ca rezultatul calculului [(1/15-1/18):1/45+1/60:(1/12-1/15)]:3/2 este numar natural

Answer 1

[(1/15-1/18):1/45+1/60:(1/12-1/15)]:3/2 [(6/90-5/90):2/90 + 1/60:(5/60-4/60)]:3/2=
=(1/90:2/90 + 1/60:1/60):3/2=
=(1/2 +1): 3/2
=(1/2 + 2/2):3/2
=3/2 : 3/2
=1
Se aduce la numitor comun prin amplificare.