Question

Efectuați adunările
a.1/6+5/4
b.13/21+13/14
c.4/15+1/20
d.6/25+7/20
e.11/5+3/7
f.1/8+7/12
g.5/33+1/22
h.1/9+5/6
Va rog dau coroană

Answer 1

Răspuns:

Explicație pas cu pas:

a  1/6+5/4=(2+5×3)/12=17/12

b  13(1/21+1/14)=13(2+3)/42=65/42

c 4/15+1/20=(4x4+3)/60=19/60

d 6/25+7/20=(6x4+7x5)/100=(24+35)/100=59/100

e 11/5+3/7=(11x7+3x5)/35=(77+15)/35=92/35

f 1/8+7/12=(3+7x2)/24=17/24

g 5/33+1/22=1/11×(5x2+3)/6=13/66

h 1/9+5/6=(2+5x3)/18=17/18

Answer 2

Răspuns:

Explicație pas cu pas:

a). 1/6+5/4=4/24+30/24=34/24=17/12

b). 13/21+13/14=26/42+39+42=65/42

c). 4/15+1/20=80/300+15/300=95/300=19/60

d). 6/25+7/20=24/100+35/100=59/100

e). 11/5+3/7=77/35+15/35=92/35

f). 1/8+7/12=3/24+14/24=17/24

g). 5/33+1/22=10/66+3/66=13/66

h). 1/9+5/6=2/18+15/18=17/18