Răspuns :
48/200=36/150=>200/48=150/36
48/36=200/150
24/100=18/75
96/400=72/300
16/32=68/136=>32/16=136/68
16/136=68/32
8/16=34/68
4/8=17/34
14/75=42/225=>14/42=75/225
75/14=225/42
28/150=84/450
48/36=200/150
24/100=18/75
96/400=72/300
16/32=68/136=>32/16=136/68
16/136=68/32
8/16=34/68
4/8=17/34
14/75=42/225=>14/42=75/225
75/14=225/42
28/150=84/450
a) [tex] \frac{48}{200}= \frac{36}{150} [/tex] ⇒
[tex] \frac{48\div2}{200\div2}= \frac{36\div2}{150\div2} [/tex] ⇒ [tex] \frac{24}{100}= \frac{18}{75} [/tex]
[tex] \frac{48\cdot3}{200\cdot3}= \frac{36}{150}[/tex] ⇒ [tex] \frac{144}{600}= \frac{36}{150} [/tex]
[tex] \frac{48\cdot2}{200\cdot2}= \frac{36\div3}{150\div3} [/tex] ⇒ [tex] \frac{96}{400}= \frac{12}{50} [/tex]
b.) [tex] \frac{16}{32}= \frac{68}{136} [/tex]
[tex] \frac{16\div16}{32\div16}= \frac{68\div68}{136\div68} [/tex] ⇒ [tex] \frac{1}{2}= \frac{1}{2}[/tex]
[tex]\frac{16\div4}{32\div4}= \frac{68\cdot2}{136\cdot2}[/tex] ⇒ [tex] \frac{4}{8}= \frac{136}{272} [/tex]
[tex] \frac{16\cdot2}{32\cdot2}= \frac{68\div4}{136\div4}[/tex] ⇒ [tex] \frac{32}{64}= \frac{17}{34} [/tex]
c.) [tex] \frac{14}{75}= \frac{42}{225} [/tex]
[tex] \frac{14\cdot2}{75\cdot2}= \frac{42\div3}{225\div3} [/tex] ⇒ [tex] \frac{28}{150}= \frac{14}{75} [/tex]
[tex]\frac{14}{75}\cdot \frac{75}{14}= \frac{42}{225}\cdot \frac{225}{42} [/tex] ⇒ [tex]1=1[/tex]
[tex] \frac{14}{75}= \frac{42\div3}{225\div3} [/tex] ⇒ [tex] \frac{14}{75}= \frac{14}{75} [/tex]
[tex] \frac{48\div2}{200\div2}= \frac{36\div2}{150\div2} [/tex] ⇒ [tex] \frac{24}{100}= \frac{18}{75} [/tex]
[tex] \frac{48\cdot3}{200\cdot3}= \frac{36}{150}[/tex] ⇒ [tex] \frac{144}{600}= \frac{36}{150} [/tex]
[tex] \frac{48\cdot2}{200\cdot2}= \frac{36\div3}{150\div3} [/tex] ⇒ [tex] \frac{96}{400}= \frac{12}{50} [/tex]
b.) [tex] \frac{16}{32}= \frac{68}{136} [/tex]
[tex] \frac{16\div16}{32\div16}= \frac{68\div68}{136\div68} [/tex] ⇒ [tex] \frac{1}{2}= \frac{1}{2}[/tex]
[tex]\frac{16\div4}{32\div4}= \frac{68\cdot2}{136\cdot2}[/tex] ⇒ [tex] \frac{4}{8}= \frac{136}{272} [/tex]
[tex] \frac{16\cdot2}{32\cdot2}= \frac{68\div4}{136\div4}[/tex] ⇒ [tex] \frac{32}{64}= \frac{17}{34} [/tex]
c.) [tex] \frac{14}{75}= \frac{42}{225} [/tex]
[tex] \frac{14\cdot2}{75\cdot2}= \frac{42\div3}{225\div3} [/tex] ⇒ [tex] \frac{28}{150}= \frac{14}{75} [/tex]
[tex]\frac{14}{75}\cdot \frac{75}{14}= \frac{42}{225}\cdot \frac{225}{42} [/tex] ⇒ [tex]1=1[/tex]
[tex] \frac{14}{75}= \frac{42\div3}{225\div3} [/tex] ⇒ [tex] \frac{14}{75}= \frac{14}{75} [/tex]