Jawaban:
27. C. 0,25
12/48 = 12 ÷ 48 = 0,25
28. D. 20%
1/5 × 100% = 100/5 = 20%
29. C. 252
Luas persegi panjang = p × l = 28 × 9 = 252 cm²
30. C. 8
Luas persegi panjang = p × l
Diketahui :
L = 128 cm²
p = 16
Jawab :
128 = 16 × l
128/16 = l
8 = l
31. D. 4/10
8/10 - 6/15 = 24/30 - 12/30 = 12/30
12/30 di sederhanakan, masing masing ÷3 jadi 4/10
32. C. 1 1/2
4 5/20 + 3/4 = 4 5/20 + 15/20 = 4 20/20
4 20/20 disederhanain 100/20 = 5
5 - 3,5 = 1,5 m
1,5 diubah ke pecahan jadi 1 1/2
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Jawaban:
27. C. 0,25
12/48 = 12 ÷ 48 = 0,25
28. D. 20%
1/5 × 100% = 100/5 = 20%
29. C. 252
Luas persegi panjang = p × l = 28 × 9 = 252 cm²
30. C. 8
Luas persegi panjang = p × l
Diketahui :
L = 128 cm²
p = 16
Jawab :
128 = 16 × l
128/16 = l
8 = l
31. D. 4/10
8/10 - 6/15 = 24/30 - 12/30 = 12/30
12/30 di sederhanakan, masing masing ÷3 jadi 4/10
32. C. 1 1/2
4 5/20 + 3/4 = 4 5/20 + 15/20 = 4 20/20
4 20/20 disederhanain 100/20 = 5
5 - 3,5 = 1,5 m
1,5 diubah ke pecahan jadi 1 1/2
28. 1/5 x 20 = 20/100 = 20%
29. 28 x 9 = 252
30. 128:16=8
31. 8/10 - 6/15 = 24/30 - 12/30 = 12/30 disederhanakan menjadi 4/10
32. 5m - 3,5m = 1,5 m di ubah menjadi pecahan campuran 1 1/2 m
maaf jika salah