1. 2 1/2:1/5 adalah 2.5/8+1,75+6,45= 3.2 8/12+1 5/6= 4.12/18-4/9=
Matematika
nailaviola27
Pertanyaan
1. 2 1/2:1/5 adalah
2.5/8+1,75+6,45=
3.2 8/12+1 5/6=
4.12/18-4/9=
2.5/8+1,75+6,45=
3.2 8/12+1 5/6=
4.12/18-4/9=
1 Jawaban
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1. Jawaban Zakki1028
No 1 )
2 1/2 : 1/5
=5 / 2 × 5/1
=25 / 2
=12 1/2
No 2 )
5/8 + 1 3/4 + 129 / 20
=(5 / 8 + 7 / 4 )+ 129 / 20
=(5/8 + 14/8) + 129 / 20
=19 / 8 + 129 / 20
=95 / 40 + 258 / 40
=353 / 40
=8 7/8
No 3)
2 8/12 + 1 5/6
=32 / 12 + 11/6
=32 / 12 + 22 / 12
=54 / 12
=4 1/2
No 4)
12 / 18 - 4/9
=2/3 - 4/9
=6/9 - 4/9
=2/9
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