Ibu beli 2 1/4 kentang, 3 1/3 jagung dan 1 1/2 wortel, berapa jumlah totalnya (kg)?

2 1/4 = 9/4
3 1/3 = 10/3
1 1/2 = 3/2

total = 9/4 + 10/3 + 3/2
        = 27/12 + 40/12 + 18/12
        = 85/12
        = 7 1/12 kg
jika bentuk desimal = 7, 083 kg