Question

Verify: a + (b + c) = (a + b) + c for a = 1/2, b=3/5 and cm-3/2​

Answer 1

Answer:

1/2+(3/5+-3/2) = (1/2+3/5)+(-3/2)

1/2+(3/5×2+-3/2×5) = (1/2×5+3/5×2)+(-3/2)

1/2+(6+(-15)/10) = (5+6/10)+(-3/2)

1/2+(-9)/10 = 11/10+(-3/2)

1/2×5+(-9)/10 = 11/10+(-3/2)×5

5+(-9)/10 = 11+(-15)/10

-4/10 = -4/10

-4 = -4/10×10

-4 = -4

= -4+(-4)

= -4-4

= -8 ans