Question

Efectuati produsele:

a) 1/2 x 2 b) 7/8 x 4 c) 1 intreg si 2/3 x 2 d) 2 intregi si 2/5 x 10

Answer 1

a)1/2=0.5x2=1
b)7/8=0/875x4=3.5
c)1.2/3=0/4x2=0.8
d)2.2/5x10=4.4
sper ca ream ajutat

Answer 2

a)1/2x2=1/2x2/1=2/2=1,
b)7/8x4=7/8x4/1(4 si 8 se simplifica cu 4)=7/2x1/1=7/2,
c)1 intreg si 2/3=1x3+2/3=3+2/3=5/3
   5/3x2=5/3x2/1=10/3
d)2 intregi si 2/5=2x5+2/5=10+2/5=12/5
   12/5x10=12/5x10/1(10 si 5 se simplifica cu 5)=12/1x2/5=24/5