ex 1
a) 3/5•6/7=3•6/5•7=18/35
b) 1/6•7/12=1•7/6•12=7/72
c) 1/3•2/9=1•2/3•9=2/27
d) 1/9•1/7=1•1/9•7=1/63
e) 7:7/3=7•3/7=3
f) 5/9•2/3=5•2/9•3=10/27
g) 7/9•1/3=7•1/9•3=7/27
h) 5/8•1/2=5•1/8•2=5/16
ex 2
a) 4 1/2•2/3=9/2•2/3=3
b) 7/12•3 1/6=7/4•1/6=7/24
c) 2 2/3• 2 1/3=(2+2)+(2/3+1/3)=4+1=5
d) 4 1/2• 3 1/2=9/2•3•1/2=27/4
/ inseamna supra
• inseamna ori
sper ca te am putut ajuta!! coroana?
