Tentukan hasil dari : A. 6 1/2 - 25% + 0.9
: B. 7 1/4 + 3,5 : 1/2 x 60%
jadi kan desimal :
1. 17 4/9
2. 125%
jadi kan persen
1. 3/10
2. 0,07
: B. 7 1/4 + 3,5 : 1/2 x 60%
jadi kan desimal :
1. 17 4/9
2. 125%
jadi kan persen
1. 3/10
2. 0,07
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Jawaban:
A. 6 1/2 -25%+0, 9
= 13/2 - 25/100+9/10
= 13/2-1/4+9/10
=130-5+18/20
= 143/20 = 7 3/20
B. 7 1/4+3, 5:1/2×60%
= 29/4 + 35/10 : 1/2 × 60/100
= 29/4 + 7/2 :1/2 × 3/5
= 29/4 + 42/10 = 145+ 84 / 20
= 229/20 = 11 9/20
1. 3/10 = 30%
2. 0,07 = 7/10 = 7%