72% x 3 1/8 + 1,6= bantu jawab pakai cara ya kak​

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72% x 3 1/8 + 1,6= bantu jawab pakai cara ya kak​

= 72/100 × 3 1/8 + 16/10

= 72/100 × 3 1/8 + 8/5

3 1/8 = 8×3+1 = 25/8

72/100 × 25/8 + 8/5

= 72÷8/100 × 25/8÷8 + 8/5

= 9/100 × 25 + 8/5 = 9/100÷25 × 25÷25 + 8/5 = 9/4 + 8/5 = 77/20 atau 3 17/20 atau 3,85

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