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3/8 × 5 4/12 = 3/8 × 64/12 = 8/4 = 2
Nomor 9
3/4 + 3 1/2 - 2,25 = 0,75 + 3,5 - 2,25 = 2,00 kg
9. dibeli= 3/4 + 3 1/2
= 3/4 + 7/2
= 3/4 + 14/4
= 17/4
= 4,25 kg
digunakan = 4,25-2,25
= 2,00 kg