Răspuns :
a
3/10
5/12
5/6
10=2*5
12=2*2*3
6=2*3
cmmnc=2*2*3*5=60
3/10 =18/60
5/12 =20/60
5/6 =50/60
b
1/2
2/3
3/5
7/30
2=2
3=3
5=5
30=2*3*5
cmmmc=2*3*5=30
1/2 =15/30
2/3=20/30
3/5 =18/30
7/30=7/30
c
1/2
3/4
5/18
2=2
4=2*2
18=2*3*3
cmmmc=2*2*3*3=36
1/2=18/36
3/4 =27/36
5/18 =10/36
3/10
5/12
5/6
10=2*5
12=2*2*3
6=2*3
cmmnc=2*2*3*5=60
3/10 =18/60
5/12 =20/60
5/6 =50/60
b
1/2
2/3
3/5
7/30
2=2
3=3
5=5
30=2*3*5
cmmmc=2*3*5=30
1/2 =15/30
2/3=20/30
3/5 =18/30
7/30=7/30
c
1/2
3/4
5/18
2=2
4=2*2
18=2*3*3
cmmmc=2*2*3*3=36
1/2=18/36
3/4 =27/36
5/18 =10/36
numitorul comun este 60
3/10=18/60
5/12=25/60
5/6=50/10
numitorul este 30
1/2=15/30
3/5=18/30
7/30=7/30
numitorul este 36
1/2=18/36
3/4=27/36
5/18=10/36
3/10=18/60
5/12=25/60
5/6=50/10
numitorul este 30
1/2=15/30
3/5=18/30
7/30=7/30
numitorul este 36
1/2=18/36
3/4=27/36
5/18=10/36