Soal pecahan 2

Berikut soal matematika operasi hitung pecahan:
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1. \(\large 2\,\frac{1}{4} : \frac{6}{10} × \frac{8}{9} = \) ?
2. \(\large \frac{3}{7}\,×\,4\,\frac{2}{3} = \) ?
3. \(\large \frac{4}{7}\,×\,2\,\frac{1}{2}:0,25=\) ?
4. \(\large 2\,\frac{3}{5} : \frac{1}{2}\,×15%:0,8 = \) ?
5. \(\large 18%×\frac{5}{6}:\frac{3}{12} =\) ?
6. \(\large 72 \,–\, \frac{2}{3} ×72\,–\,\frac{1}{4}×72 \) ?
7. \(\large 1\,\frac{1}{9}×6\,\frac{2}{5}:5\,\frac{1}{3} = \) ?
8. \(\large 4:\frac{3}{4}×\frac{1}{2} =\) ?
9. \(\large 2,25 × \frac{8}{15}:1\,\frac{1}{3} =\) ?
10. \(\large 5\,\frac{1}{4}×\frac{3}{4}:\frac{1}{2} = \) ?
11. \(\large 2\,\frac{1}{4}:\frac{3}{4}×20% = \) ?
12. \(\large 5\,\frac{2}{5}×\frac{4}{9}:1,5 = \) ?
13. \(\large 2\,\frac{1}{2}×\frac{7}{8}:0,250 = \)?
14. \(\large 3,2 : ( \, 0,8 : \frac{15}{20}\,) × 1 \,\frac{3}{4} = \) ?
15. \(\large 2\,\frac{1}{4} : ( 0,6 * \frac{2}{5} ) = \) ?
16. \(\large 2,25 * 1 \,\frac{2}{3} : ( 1 \,\frac{1}{3} : 1\,\frac{3}{5})  =\) ?
17. \(\large 35% : 0,2 × 2\,\frac{2}{7} = \) ?
18. \(\large 60%: 0,3 × 2\,\frac{1}{2} = \) ?
19. \(\large 2\,\frac{2}{3} × 75%:0,5 = \) ?
20. \(\large \frac{3}{8}  : 75% × 1 \,\frac{2}{5} = \) ?
21. \(\large 40% : \frac{4}{5} × 1,2 = \) ?
22. \(\large 1 \frac{2}{3} × \frac{3}{5} : 15% = \) ?
23. \(\large 34% : 1 \,\frac{9}{25} × \frac{8}{10} = \) ?
24. \(\large 1\,\frac{3}{4} × 75% : 0,875 = \) ?
25. \(\large a = \frac{3}{5} × \frac{5}{6} \). b = \(\ \frac{5}{12} : 1 \frac{3}{4} \). Nilai a×b =n?