1.

7 \frac{1}{3}-2 \frac{1}{4}+\left(4 \frac{1}{3}\right)-\left(2 \frac{1}{5}-\frac{3}{4}\right)

Answer»

22/3-9/4+13/3-11/5+3/4=35/3-6/4-11/5=(700-90-132)/60=478/60=239/30



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