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28.37+37:28+37
=28.37+37.\(\frac{1}{2^8}\)+37
=(28+\(\frac{1}{2^8}\)+1).37
=\(\approx\)562067,543
= 1 x 3 + 2 x 3 + 3 x 3 + 4 x 3 + ...+ 9 x 3
= 3 x ( 1 + 2 + 3 + 4 + ...+ 9)
= 3 x 45
= 135
\(\dfrac{8}{9}:\dfrac{3}{7}=\dfrac{56}{27}\\ \dfrac{8}{9}+\dfrac{2}{5}=\dfrac{58}{45}\\ \dfrac{7}{8}-\dfrac{1}{3}=\dfrac{13}{24}\\ \dfrac{3}{10}\times\dfrac{1}{6}=\dfrac{1}{20}\\ 1\dfrac{2}{7}+6\dfrac{5}{6}=\dfrac{9}{7}+\dfrac{41}{6}=\dfrac{341}{42}\\ 5\dfrac{3}{4}-\dfrac{1}{5}=\dfrac{23}{4}-\dfrac{1}{5}=\dfrac{111}{20}\\ 6\dfrac{2}{9}:4\dfrac{7}{10}=\dfrac{56}{9}:\dfrac{47}{10}=\dfrac{560}{423}\\ \dfrac{5}{3}+\dfrac{3}{2}-\dfrac{7}{6}=2\)
\(\left(-1\right)^3.\left(-\frac{7}{8}\right)^3.\left(-\frac{2}{7}\right)^2.\left(-7\right).\left(-\frac{1}{14}\right)=\left(-1\right).\left(-\frac{343}{512}\right).\left(-\frac{4}{49}\right).\left(-7\right).\left(-\frac{1}{14}\right)=-\frac{343.4.7}{512.49.14}=\frac{7}{256}\)
3+ 7/2 + 7/2 + 7/2 + 7/5764 + 8 = 21,50121443