Kerjakan perhitungan berikut. 1. (-3,8) + (-5,7) 2. (+1,02) + (-9,4) 3. (-1/3) + (-3/4)
Kerjakan perhitungan berikut.
1. (-3,8) + (-5,7)
2. (+1,02) + (-9,4)
3. (-1/3) + (-3/4)
4. (-3/8) + (+5/6)
5. (+1/4) + (0,75)
Pembahasan:
1. (-3,8) + (-5,7) = -3,8 – 5,7 = -9,5
2. (+1,02) + (-9,4) = 1,02 – 9,4 = -8,38
3. (-1/3) + (-3/4) = -4/12 – 9/12 = -13/12
4. (-3/8) + (+5/6) = -9/24 + 20/24 = 11/24
5. (+1/4) + (0,75) = 0,25 + 0,75 = 1
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