Jawaban:
1. 1 1/2 = 3/2
3/2 + 1/4 - 4/5 = 6/4 - 1/4 - 4/5
= 5/4 - 4/5
= 25/20 - 16/20 = 9/20
2. 4/5 - 1/9 : 5/6
= 36/45 -5/45 : 5/6
= 31/45 : 5/6
= 31/45 x 6/5
= 186/225 = 62/75
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Jawaban:
1. 1 1/2 = 3/2
3/2 + 1/4 - 4/5 = 6/4 - 1/4 - 4/5
= 5/4 - 4/5
= 25/20 - 16/20 = 9/20
2. 4/5 - 1/9 : 5/6
= 36/45 -5/45 : 5/6
= 31/45 : 5/6
= 31/45 x 6/5
= 186/225 = 62/75