Question

Ajutati-ma va rog frumos la exercitiile 15 si 16. Va rog frumos..

Answer 1

15)
a) = 2/4+1/4= 3/4
b) = 2/6+2/6 =4/6 = 2/3
c) = 5/12 + 3/12 = 8/12 = 2/3
d) = 4/20 + 3/20 = 7/20
e) =  4/30+4/30 = 8/30 = 4/15
f)  = 15/33 +3/33 = 18/33
g) = 33/60 + 7/60 = 40/60 = 2/3
h) = 16/100+7/100 = 23/100

16)

a) = 5/10 +6/10 = 11/10
b) = 8/28 + 24/28 = 32/28 = 8/7
c) = 40/56 + 21/56 = 61/56
d) = 10/15+ 12/15 = 22/15
e) = 15/21 + 14/21 = 29/21
f) = 4/100 + 75/100 = 79/100