Question

Va rog ajutati.ma
Doar la ex. 1 si 2
Dau coroana

Answer 1

1). a). 1/4 * 100 = 25
b) 2/3 * 336 = 2 * 112= 224
c). 2/5 * 75 = 2 * 15 = 30
d). 3/7 * 777= 3* 111 = 333
e).11/8 * 64 = 11*8 = 88
f).4/9 * 162 = 4 * 18 = 72
g).3/11 * 143 = 3 * 13 = 39
h) $1\frac{1}{13} * 1001$ = 14/13 * 1001 = 14 * 77 = 1078

2) a).1/3 * 3/7= 1/7 =
b) 3/4 * 4/3 = 1
c) 7/5 * 15/19= 21/19 = 1+ 2/19
d) 5/12 * 18/5 = 18/12 = 3/2 = 1+ 1/2
e)9/11 * 22/27 = 2/3 = 0 + 2/3
f) 2/5 * 45/7 = 18/7 = 2+ 4/7
g)25/11 * 11/45 = 5/9 
h).9/5 * 55/27 = 11/3 = 3 + 2/3