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2025-03-24 20:47:55
a) \(\dfrac{-5}{9}\)+\(\dfrac{-8}{15}\)+\(\dfrac{-2}{11}\)+\(\dfrac{-4}{9}\)+\(\dfrac{-7}{15}\)= (\(\dfrac{-5}{9}\)+\(\dfrac{-4}{9}\))+(\(\dfrac{-8}{15}\)+\(\dfrac{-7}{15}\))+\(\dfrac{-2}{11}\)=\(\dfrac{-9}{9}\)+\(\dfrac{-15}{15}\)+\(\dfrac{-2}{11}\)=-2+\(\dfrac{-2}{11}\)=-2\(\dfrac{2}{11}\)=\(\dfrac{-23}{11}\)
2025-03-24 20:40:52
a) -3/8>5/-12
b)3131/5252=31/52