2.1 Exercises

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Övning 2.1:1

Skriv på gemensamt bråkstreck

a) \displaystyle 3x(x-1) b) \displaystyle (1+x-x^2)xy c) \displaystyle \displaystyle \frac{2}{7}-\frac{1}{5}
d) \displaystyle \displaystyle \frac{1}{3}+\frac{1}{4}+\frac{1}{5} e) \displaystyle \displaystyle \frac{8}{7}+\frac{3}{4}-\frac{4}{3} f) \displaystyle \displaystyle \frac{8}{7}+\frac{3}{4}-\frac{4}{3}
g) \displaystyle \displaystyle \frac{8}{7}+\frac{3}{4}-\frac{4}{3} h) \displaystyle \displaystyle \frac{8}{7}+\frac{3}{4}-\frac{4}{3}