Question

dau coroana va rog e urgent​

Answer 1

Explicație pas cu pas:

a)

$1 \frac{3}{4} - \frac{5}{5} = \frac{7}{4} - \frac{5}{4} = \frac{7 - 5}{4} = \frac{2}{4} = \frac{1}{2}$

b)

$\frac{11}{5} - 2 \frac{4}{5} = \frac{11}{5} - \frac{14}{5} = \frac{11 - 14}{5} = - \frac{3}{5}$

c)

$- \frac{5}{6} - 3 \frac{5}{6} = - \frac{5}{6} - \frac{23}{6} = - \frac{5 + 23}{6} = - \frac{28}{6} = - \frac{14}{3}$

d)

$- 2 \frac{3}{8} - \frac{17}{8} = - \frac{19}{8} - \frac{17}{8} = - \frac{19 + 17}{8} = - \frac{36}{8} = - \frac{9}{2}$

e)

$- \frac{6}{7} - ( - 2 \frac{2}{7}) = - \frac{6}{7} + \frac{16}{7} = \frac{16 - 6}{7} = \frac{10}{7}$

f)

$- 4 \frac{1}{5} - ( - \frac{2}{5}) = - \frac{21}{5} + \frac{2}{5} = - \frac{21 - 2}{5} = - \frac{19}{5}$

Answer 2

Răspuns:

1. a)7/4 - 5/4=2/4=1/2

b)11/5-14/5= -3/5

c)-5/6-23/6=-14/3

d)-19/8-17/8=-9/2

e)-6/7 + 2 2/7= -6/7 + 16/7= 10/7

f)-21/5 + 2/5= -19/5

Explicație pas cu pas:

linia aceasta / reprezinta linia de fractie

de ex 2/4= 2 supra 4

Sper ca te-am ajutat!