kak jawab ya plis pake cara
CARA JAWABAN
1.)
2,375 - (0,425 + 1/2) ÷ 1 1/3.
2,375 - 925/1000 ÷ 4/3
2,375 - 37/40 x 3/4
2,375 - 111/160
6725/4000 = 269/160
= 1 109/160
2.)
3/4 + 1/5 - 1/6 x 4 1/2
3/4 + 1/5 - 1/6 x 9/2
3/4 + 1/5 - 9/12
3/4 + 1/5 - 3/4
(15+4)/20 - 15/20
19/20 - 15/20
4/20 = 1/5
3.)
(1,25 + 5/8) x (0,6 - 2/5)
(125/100 + 5/8) x (6/10 - 2/5)
(5 + 5/8) x (6/10 - 4/10)
(10+5)/8 x 2/10
15/8 x 2/10
30/80 = 3/8
4.)
3/5 + 0,24 x (3,05 - 2 3/4)
3/5 + 0,24 x (305/100 - 11/4)
3/5 + 0,24 x (61/20 - 11/4)
3/5 + 0,24 x ((61 - 55)/20)
3/5 + 0,24 x 6/20
3/5 + 24/100 x 3/10
3/5 + 6/25 x 3/10
3/5 + 18/250
3/5 + 9/125
75/125 + 9/125
84/125
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