(1 / 2 – 1 / 5 + 3 / 10) × 30 =

Question

(1 / 2 – 1 / 5 + 3 / 10) × 30 =

Answer 1

(5/10 - 2/10 +3/10) * 30 = 6/10 * 30 = 180/10 = 18

Answer 2

=15-6+9=18 каждое слагаемое умножим на 30