Taksirlah penjumlahan dan pengurangan dibawah ini: 1. 1/4+ 1 1/3= 2. 2 2/4 - 1= 3. 4 3/4 - 2=

1/4+1 1/3= 1+ 1/4 + 1/3 = 3/12 +4/12= 1 7/12
2. 2 2/4 - 1= 1 1/2
3. 4 3/4-2 = 2 3/4

1. 1/4+1 1/3= 3/12 + 1 4/12 = 1 7/14 = 1 1/2
2. 2 2/4 - 1 = 2 2/4 - 1/1 = 2 2/4 - 4/4 = 2 -2/4 = -2 1/4
3. 4 3/4 - 2 = 4 3/4 - 2/1 = 4 3/4 - 8/4 = 4 - 5/4 = -4 5/4

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