1) (-8)×(-1/4)×(-5) = 8 × 1/4 × 5 = 2 × 5 = 102) (-0,25)×(-7)×(-4) = 0,25 × 7 × 4 = 1 × 7 × 4 = 283) (-5/9)×(-10)×(-3/5) = 5/9 × 10 × 3/5 = 50/9 × 3/5 = 150/45 = 10/3
1) (-8)×(-1/4)×(-5) = 8 × 1/4 × 5 = 2 × 5 = 10
2) (-0,25)×(-7)×(-4) = 0,25 × 7 × 4 = 1 × 7 × 4 = 28
3) (-5/9)×(-10)×(-3/5) = 5/9 × 10 × 3/5 = 50/9 × 3/5 = 150/45 = 10/3