A. \(\dfrac{21}{8}+\dfrac{53}{16}\)= \(\dfrac{95}{16}\)
B. \(\dfrac{15}{2}x\dfrac{33}{4}\)= \(\dfrac{63}{4}\)
C. \(3:\dfrac{13}{3}\)= \(\dfrac{9}{13}\)
\(2\dfrac{5}{8}+3\dfrac{5}{16}\)
\(=\dfrac{21}{8}+\dfrac{53}{16}\)
\(=\dfrac{42}{16}+\dfrac{53}{16}\)
\(=\dfrac{95}{16}\)
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\(7\dfrac{1}{2}.8\dfrac{1}{4}\)
\(=\dfrac{15}{2}.\dfrac{33}{4}\)
\(=\dfrac{495}{8}\)
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\(3:4\dfrac{1}{3}\)
\(=3:\dfrac{13}{3}\)
\(=\dfrac{3}{1}.\dfrac{3}{13}\)
\(=\dfrac{9}{13}\)
\(2\dfrac{5}{8}+3\dfrac{5}{16}=\dfrac{21}{8}+\dfrac{53}{16}=\dfrac{42}{16}+\dfrac{53}{16}=\dfrac{95}{16}\)
\(7\dfrac{1}{2}\times8\dfrac{1}{4}=\dfrac{15}{2}\times\dfrac{33}{4}=\dfrac{495}{8}\)
\(3:4\dfrac{1}{3}=3:\dfrac{13}{3}=\dfrac{9}{13}\)
