Question

Efectuati calculele:
1-a)$\frac{7}{8}$·$\frac{2}{5}$=?
b)$\frac{36}{44}$·$\frac{11}{12}$=?
c)3$\frac{12}{16}$·$\frac{4}{10}$=?
d)2$\frac{1}{4}$·1$\frac{23}{45}$=?
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2-a)$\frac{7}{16}$:$\frac{9}{16}$=?
b)-$\frac{11}{28}$:$\frac{33}{56}$=?
c)3$\frac{3}{4}$:(-2$\frac{11}{12}$)=?
d)(-24):(-5$\frac{7}{13}$)=?
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3-a)4,18·3,5=?
b)-6,04·2,95=?
c)1,23·(-4,56)=?
d)-6,54·(-3,21)=?
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4-a)1,962:0,9=?
b)-19,21:3,4=?
c)47$\frac{17}{20}$:(-6,38)
d)-64,8:(-6$\frac{3}{4}$)
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Answer 1

1)a.$\frac{7}{20}$
b.$\frac{3}{4}$
c.1$\frac{1}{2}$
d.3$\frac{2}{5}$
2)a.$\frac{7}{9}$
b.$\frac{2}{3}$
c.$1 \frac{9}{11}$
d.$4 \frac{1}{3}$
3)a.14,63
b. -17,818
c. -5,6088
d. 20,9934
4)a. 2,18
b. -5,65
c. -284$\frac{9}{38}$
d. 385$\frac{1}{15}$