Question

va rog ajutatima rpd​

Answer 1

9.

a)

$\frac{9}{8} - \frac{1}{2}$

$\frac{9 - 4}{8}$

$\frac{5}{8}$

b)

$\frac{7}{3} - \frac{5}{9}$

$\frac{21 - 5}{9}$

$\frac{16}{9}$

c)

$\frac{23}{12} - \frac{5}{3}$

$\frac{23 - 20}{12}$

$\frac{3}{12}$

$\frac{1}{4}$

d)

$\frac{28}{15} - \frac{2}{3}$

$\frac{28 - 10}{15}$

$\frac{18}{15}$

$\frac{6}{5}$

e)

$\frac{29}{24} - \frac{3}{4}$

$\frac{29 - 18}{24}$

$\frac{11}{24}$

f)

$\frac{7}{4} - \frac{23}{28}$

$\frac{49 - 23}{28}$

$\frac{26}{28}$

$\frac{13}{14}$

10. a)

$\frac{7}{5} - \frac{2}{3}$

$\frac{21 - 10}{15}$

$\frac{11}{15}$

b)

$\frac{3}{2} - \frac{5}{9}$

$\frac{27 - 10}{18}$

$\frac{17}{18}$c)

$\frac{9}{8 } - \frac{11}{12}$

$\frac{27 - 22}{24}$

$\frac{5}{24}$

d)

$\frac{11}{14} - \frac{3}{4}$

$\frac{22 - 21}{28}$

$\frac{1}{28}$

e)

$\frac{7}{6} - \frac{16}{15}$

$\frac{35 - 23}{30}$

$\frac{3}{30}$

$\frac{1}{10}$

f)

$\frac{13}{12} - \frac{5}{9}$

$\frac{39 - 20}{36}$

$\frac{19}{36}$

11)

a)

$2 \frac{2}{9} - \frac{19}{15}$

$\frac{20}{9} - \frac{19}{15}$

$\frac{43}{45}$

b)

$2 \frac{5}{8} - \frac{47}{20}$

$\frac{21}{8} - \frac{47}{20}$

$\frac{11}{40}$

c)

$3 \frac{5}{6} - \frac{51}{16}$

$\frac{23}{6 } - \frac{51}{16}$

$\frac{31}{48}$

d)

$2 \frac{1}{6} - \frac{40}{27}$

$\frac{13}{6} - \frac{40}{27}$

$\frac{37}{54}$

e)

$3 \frac{1}{6} - 2 \frac{3}{8}$

$\frac{19}{6} - \frac{19}{8}$

$\frac{19}{24}$

f)

$4 \frac{2}{15} - 3 \frac{1}{6}$

$\frac{62}{15} - \frac{19}{6}$

$\frac{29}{30}$

g)

$2 \frac{5}{6} - 2 \frac{7}{10}$

$(2 - 2) + ( \frac{5}{6} - \frac{7}{10} )$

$0 + \frac{2}{15}$

$\frac{2}{15}$

h)

$2 \frac{5}{18} - 1 \frac{5}{12}$

$\frac{41}{48} - \frac{17}{12}$

$\frac{31}{36}$

12.

a)

$3 \frac{3}{4} - \frac{1}{12} - \frac{7}{6}$

$\frac{15}{4} - \frac{1}{12} - \frac{7}{6}$

$\frac{5}{2}$

b)

$2 \frac{9}{20} - \frac{4}{5} - \frac{1}{4}$

$\frac{49}{20} - \frac{4}{5 } - \frac{1}{4}$

$\frac{7}{5}$

c)

$2 \frac{7}{30} - \frac{5}{6} - \frac{1}{5}$

$\frac{67}{30} - \frac{5}{6} - \frac{1}{5}$

$\frac{6}{5}$

d)

$3 \frac{8}{9} - 2 \frac{2}{3} - \frac{1}{4}$

$\frac{35}{9} - \frac{8}{3} - \frac{1}{4}$

$\frac{35}{36}$

e)

$2 \frac{2}{5} - \frac{4}{3} - \frac{3}{4}$

$\frac{12}{5} - \frac{4}{3} - \frac{3}{4}$

$\frac{19}{60}$

f)

$3 \frac{1}{5} - 2 \frac{2}{3} - \frac{3}{25}$

$\frac{16}{5} - \frac{8}{3} - \frac{3}{25}$

$\frac{31}{75}$

Sper că te-am ajutat :)