Question

Efectuatii: 1/2+1/4;1/2+1/3;1/3+1/4;1/5+1/2;1/3+1/6;1/6+1/4;1/8+1/4;4/5+1/20;7/10 +3/100;7/6+5/12;9/10+2/5;2/3+1/27;1/15+3/10;1/12+1/18;1/20+11/20;4/21+3/14 va rog frumos ajutați mă , mulțumesc

Answer 1

a) 1/2 + 1/4 = 2/4 + 1/4 = 3/4
b) 1/2 + 1/3 = 3/6 + 2/6 = 6/6 = 1
c) 1/3 + 1/4 = 4/12 + 3/12 = 7/12
d) 1/2 + 1/5 = 5/10 + 2/10 = 7/10
e) 1/3 + 1/6 = 2/6 + 1/6 = 3/6
f) 1/6 + 1/4 = 4/24 + 6/24 = 10/24 = 5/12
g) 1/8 + 1/4 = 1/8 + 2/8 = 3/8
h) 4/5 + 1/20 = 16/20 + 1/20 = 17/20
i) 7/10 + 3/100 = 70/100 + 3/100 = 73/100
j) 7/6 + 5/12 = 14/12 + 5/12 = 19/12
k) 9/10 + 2/5 = 9/10 + 4/10 = 13/10
l) 2/3 + 1/27 = 18/27 + 1/27 = 19/27
m) 1/15 + 3/10 = 2/30 + 9/30 = 11/30
n) 1/12 + 1/18 = 3/36 + 2/36 = 5/36
o) 1/20 + 11/20 = 12/20 = 6/10 = 3/5

Answer 2

1/2+1/4=2/4+1/4=3/4
1/2+1/3=3/6+2/6=5/6
1/3+1/4=4/12+3/12=7/12
1/5+1/2=2/10+5/10=7/10
1/3+1/6=6/18+3/18=9/18=3/6=1/3
1/6+1/4=4/24+6/24=10/24=5/12
1/8+1/4=1/8+2/8=3/8
4/5+1/20=16/20+1/20=17/20
7/10+3/100=70/100+3/100=73/100
7/6+5/12=14/12+5/12=19/12
9/10+2/5=9/10+4/10=13/10
2/3+1/27=18/27+1/27=19/27
1/15+3/10=2/30+3/30=5/30=1/6
1/12+1/18=3/36+2/36=5/36
1/20+11/20=12/20=6/10=3/5
4/21+3/14=8/42+9/42=17/42