Tolong dijawab!! ya​

Penjelasan dengan langkah-langkah:

1. •2,25 × 3

= 6,75 (desimal)

Atau

•2,25 × 3

= 225/100 × 3

= 9/4 ×3 = 27/4 = 6 1/4 (pecahan )

3. 12 1/2 × 14

= 25/2×14

= 145 kg

5. 10 1/2 – 20%

= 21/2 – 20/100

= 21/2 – 1/5

= 103/10 = 10 3/10

Jawaban:

jawaban nya ialah 145 kg…