Question

VA ROG AJUTAȚI MA DAU COROANĂ ​

Answer 1

Răspuns:

Explicație pas cu pas:

a) (- 7/3) × (+ 2/5) × (- 30/7) = 2/5 × 10 = 2 × 2 = 4

b) -0,(5) × (- 2 1/3) × 18/5 = - 5/9 × (- 7/3) × 18/5 = 7/3 × 2 = 7/3 × 2/1 = 14/3

d) 11/12 + (- 5/3) × (- 1/4) - 7/24 = 11/12 + 5/12 - 7/24 = 16/12 - 7/24 = 4/3 - 7/24 = 32/24 - 7/24 + 25/24

e) 3/4 × [- 2/3 + (- 7/3)] = 3/4 × (- 2/3 - 7/3) = 3/4 × (- 3) = - 3/4 × 3/1 = - 9/4