Question

7și8, vă rog!!!!
Dau coroană +10puncte!

Answer 1

Ex.7
a)$\frac{8}{10} - \frac{2}{10}= \frac{6}{10}$
b)$\frac{36}{10} - \frac{30}{10}= \frac{6}{10}$
c)$\frac{50}{10} - \frac{30}{10} - \frac{14}{10} = \frac{6}{10}$
Ex. 8
a)$\frac{2}{4}- \frac{2}{8} = \frac{2}{8} = \frac{1}{4}$
b)$\frac{75}{100} - \frac{50}{100} = \frac{25}{100} = \frac{1}{4}$
c)$\frac{6}{4} - \frac{5}{4} = \frac{1}{4}$
d)$\frac{6}{8}- \frac{2}{4} = \frac{2}{8}=  \frac{1}{4}$
e)$\frac{9}{12}- \frac{6}{12}= \frac{3}{12} = \frac{1}{4}$

Answer 2

7 )  6 / 10 = 6 supra 10; / = linie de fractie 

a )  6 / 10  = 8 /10 - 2/10 → diferenta a 2 fractii subunitare

b)   6/10 = 18/10 - 12/10 → diferenta a 2 fractii supraunitare

c)   6/10 = 11/10 - 3/10 - 2/10 → diferenta a 3 fractii


8)  6/4 - 5/4 = 1/4 → un sfert din intreg

9/12 - 6/12 = 3/12 = 1/4 → un sfert din intreg 

75 /100 - 50 /100 = 25 /100 = 1/4 → sfertul intregului