Hej!
3/5 * 1500 = 3 * 300 = 900
1500 + 900 = 2400
2/5 * 1500 = 2 * 300 = 600
1500 - 600 = 900
1/10 * 2000 = 2000 : 10 = 200
2000 + 200 = 2200
4/10 * 2000 = 4 * 200 = 800
2000 - 800 = 1200
1/5 * 150 = 150 : 5 = 30
150 + 30 = 180
1/5 * 150 = 150 : 5 = 30
150 - 30 = 120
1/6 * 240 = 240 : 6 = 40
240 + 40 = 280
5/6 * 240 = 5 * 40 = 200
240 - 200 = 40
Pozdrawiam! - Julka