Đề bài Tính: a)(frac{2}{{15}} + left( {frac{{ – 5}}{{24}}} right)) b) (left( {frac{{ – 5}}{9}} right) – left( { – frac{7}{{27}}} right);) c)(left( { – frac{7}{{12}}} right) + 0,75) d)(left( {frac{{ – 5}}{9}} right) – 1,25) e)(0,34.frac{{ – 5}}{{17}}) g) (frac{4}{9}:left( { – frac{8}{{15}}} right);) h)(left( {1frac{2}{3}} right):left( {2frac{1}{2}} right)) i) (frac{2}{5}.left( { – 1.25} […]
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Author: admin