Question

Macar la 3 dintre ele
Macar un exemplu
Va rog!!!Dau coroana!!!!​

Answer 1

Explicație pas cu pas:

daca vrei te ajut la toate

Answer 2

Răspuns:

dam numitor comun

Explicație pas cu pas:

a) 1/3+1/2=(2×1)/(3×2)+(3×1)/(2×3)= 2/6+3/6=5/6

b) 1/8+1/2=1/8+4/8=5/8

c) 1/6+1/4=(1×2)/12+(3×1)/12)=2/12+3/12=5/12

d) 1/4+5/8=(2×1)/8+5/8=(2+5)/8=7/8

e) 1/3+1/4=4/12+3/12=7/12

f) 1/4+1/8=2/8+1/8=3/8

g) 5/6+7/4=10/12+21/12=31/12

h) 1/9+5/12=(1×4)/36+(5×3)/36=(4+15)/36=19/36

i) 1/12+7/6=1/12+14/12=15/12

j) 5/18+7/12=(5×2)/36+(7×3)/36=10/36+21/36=31/36

k) 2/15+7/20=(2×4)/60+(7×3)/60=8/60+21/60=29/60

l) 5/14+6/7= 5/14+12/14=17/14