1 1/4 + (-3 1/6)=
isn't it 9/10
Hello mathbms!
\(1\dfrac{1}{4}+(-3\dfrac{1}{6})=\dfrac{5}{4}-\dfrac{19}{6}=\dfrac{3\cdot 5-2\cdot 19}{12}=\color{blue}-\dfrac{23}{12}\)
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