Срочно решение:
[tex] \frac{3}{8} \div \frac{3}{4} + \frac{1}{3} \div ( - \frac{2}{9} )[/tex]
[tex] \frac{3}{8} \div \frac{3}{4} + \frac{1}{3} \div ( - \frac{2}{9} )[/tex]
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Answers & Comments
3/8:3/4+1/3:(-2/9)=
3/8:3/4=3*4/8*3=1/2; (3 и 3 сокращаем, 8 и 4 сокращаем на 4)
1/3:(-2/9)=- 1*9/3*2=-3/2=-1 1/2; (сокращаем 9 и 3 на 3).
1/2- 1 1/2= -1+ 1/2-1/2=-1