Question

Bună seara! Ma poate ajuta și pe mine cineva la ex 2? Va rog! Cat mai repede! Dau coroană ​

Answer 1

a) 2(3/4) - 5/4 = 11/4 - 5/4 = 6/4 = 3/2
b) 3(2/9) - 8/9 = 29/9 - 8/9 = 21/9
c) 5(3/4) - 3(1/4) = 23/4 - 13/4 = 10/4 = 5/2
d) 4(2/9) - 1(5/9) = 38/9 - 14/9 = 24/9 = 8/3
e) 4(3/8) - 2(7/8) = 35/8 - 23/8 = 12/8 = 3/2
f) 5(1/6) - 2(5/6) = 31/6 - 17/6 = 14/6 = 7/3

Answer 2

Răspuns:

$2 \frac{3}{4} - \frac{5}{4} = \frac{11}{4} - \frac{5}{4} = \frac{6}{4}$

$3 \frac{2}{9}-\frac{8}{9} = \frac{29}{9} - \frac{8}{9} = \frac{20}{9}$

$5 \frac{3}{4} - 3 \frac{1}{4} = \frac{23}{4} - \frac{13}{4} = \frac{10}{4}$

$4 \frac{2}{9} - 1 \frac{5}{9} = \frac{38}{9} - \frac{14}{9} = \frac{24}{9}$

$4 \frac{3}{8} - 2 \frac{7}{8} = \frac{35}{8} - \frac{23}{8} = \frac{12}{8}$

$5 \frac{1}{6} - 2 \frac{5}{6} = \frac{31}{6} - \frac{17}{6} = \frac{14}{6}$