Question

Ma ajuta-ți in poza 1,2,4 la aceste exercitii!!!?Repede va roggggg!!!!!!!!!!!Dau coroana si multe puncte!!!

Answer 1

1.a-nr
2a=3intregi 1/5
2a=16/5
a=16/5:2
a=16/5*1/2
a=16/10
a=1,6
2.
b-nr
b+3/2=7/3
b=7/3(amplificam cu 2)-3/2(amplificam cu 3)
b=14/6-9/6
b=5/6
4.c-nr
2c+5/9=2intregi 1/3
2c+5/9=7/3
2c=7/3(amplificam cu 3)-5/9
2c=21/9-5/9
2c=16/9
c=16/9:2
c=16/9*1/2
c=16/18(simplificam prin 2)
c=8/9