Question

10. Calculati:
2,3
a) +
e)
+
2-6
3
2930
2326
+
2
6823
7836
+
+

Answer 1

a) 2/5 + 3/10 => amplificam 2/5 cu 2 => 4/10 + 3/10 = 7/10

b)2/9 + 2/3 amplificam 2/3 cu 3 => 2/9 + 6/9 = 8/8

c) 3/4 +5/8=> amplificam 3/4 cu 2 => 6/8+5/8= 11/8

d) 7/8 +1/2=> amplificam 1/2 cu 4 => 7/8+4/8=11/8

e) 1/2+1/4=> amplificam 1/2 cu 2 => 2/4+1/4=3/4

f) 3/10+2/5=> amplificam 2/5 cu 2 => 3/10+4/10=7/10

g) 1/6+2/3=> amplificam 2/3 cu 2 =>1/6+4/6=5/6

h) 3/5+1/20=> amplificam 3/5 cu 4=> 12/20+ 1/20=13/20

A amplifica o fractie spre exemplu “amplificam 3/5 cu 4” inseamna a inmulti fractia cu acel numar

Answer 2

a)7/10
b)8/9
c)11/8
d)11/8
e)5/4
f)7/10
g)5/6
h)13/20
(eu le-am amplificat pe tote)