31Dec

Вычислите 3/4+1/5×5/19 12 1/3-7 3/4×6/11 2 3/5-5/8:19 3/4

101098z Математика 1 1

Вычислите 3/4+1/5×5/19 12 1/3-7 3/4×6/11 2 3/5-5/8:19 3/4

Posted by 101098z | Posted at Dec 31, 2013 | Categories: Математика

Answers

yurayura
yurayura

1)(3/4+1/5)*5/19=1/4 3/4+1/5=19/20 19/20*5/19=1/4 2) (12 1/3-7 3/4)*6/11=2 1/2 12 1/3-7 3/4=4 7/12 4 7/12*6/11=2 1/2 3) (2 3/5-5/8):19 3/4=1/10 2 3/5-5/8=1 39/40 1 39/40:19 3/4= 1/10

Dec 31, 2013 22:49

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