C. 3 1/4 × 0,2 + 2 1/5 : 0,4
= (13/4 × 0,2) + (11/5 : 0,4)
= 0,65 + 5,5
= 6,15 atau 6 3/20
D. 1,25 × 2/3 : 60% - 1/5
= (5/4 × 2/3) : (60/100 - 1/5)
= (5/4 × 2/3) × (100/60 - 1/5)
= 2/3 × 25/12 - 1/5
= 1/3 × 25/6 - 1/5
= 25/18 - 1/5
= 107/90
Bentuk Alternatifnya 1 17/90 atau 1,18
Notes : Jadikan jawaban tercerdas ya kak, terimakasih
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C. 3 1/4 × 0,2 + 2 1/5 : 0,4
= (13/4 × 0,2) + (11/5 : 0,4)
= 0,65 + 5,5
= 6,15 atau 6 3/20
D. 1,25 × 2/3 : 60% - 1/5
= (5/4 × 2/3) : (60/100 - 1/5)
= (5/4 × 2/3) × (100/60 - 1/5)
= 2/3 × 25/12 - 1/5
= 1/3 × 25/6 - 1/5
= 25/18 - 1/5
= 107/90
Bentuk Alternatifnya 1 17/90 atau 1,18
Notes : Jadikan jawaban tercerdas ya kak, terimakasih