Question

[tex]Calculati : a) 2 \frac{1}{3} * \frac{9}{14}- 1 \frac{1}{2}* \frac{1}{3}
b) 10 \frac{1}{2}-(2 \frac{2}{3}* \frac{27}{32}- \frac{5}{8}* \frac{14}{25} [/tex] )

Answer 1

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Answer 2

a) 7/3 * 9/14 - 3/2 * 1/3 = 63/42 - 3/6 = 63/42 - 21/42 = 42/42 = 1
b) 21/2 - ( 8/3 * 27/32 - 5/8 * 14/25) = 21/2 - (216/96 - 70/200) = 21/2 - (5400/2400 - 840/2400) = 21/2 - 4560/2400 = 25200/2400 - 4560/2400 = 20640/2400 = 258/30 = 43/5 = 8 si 3/5
Cum sa scriu si eu cu fractii la fel cum ai postat tu? Nu stiu.