11. Hasil 6 1/6–1 7/15+3/20–2 1/4 A. 2 3/5 B.2 2/5 C. 2 7/30 D.2 1/30 ​

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11. Hasil 6 1/6–1 7/15+3/20–2 1/4 A. 2 3/5 B.2 2/5 C. 2 7/30 D.2 1/30 ​

6 frac{1}{6} - 1 frac{7}{15} + frac{3}{20} - 2 frac{1}{4} \ frac{37}{6} - frac{22}{15} + frac{3}{20} - frac{9}{4} \ frac{370 - 88 + 9 - 135}{60} \ = frac{156}{60} \ = frac{13}{5} \ = 2 frac{3}{5}