Faça 5 frações equivalentes para cada fração a baixoa)2\/3b)1\/5c)12\/7

a) \(\dfrac23\)

Temos as frações equivalentes \(\dfrac23\cdot \dfrac22=\dfrac46\), \(\dfrac23\cdot \dfrac33=\dfrac69\), \(\dfrac23\cdot \dfrac44=\dfrac8{12}\), \(\dfrac23\cdot \dfrac55=\dfrac{10}{15}\) e \(\dfrac23\cdot \dfrac66=\dfrac{12}{18}\).

b)\(\dfrac15\)

Temos as frações equivalentes \(\dfrac15\cdot \dfrac22=\dfrac1{10}\), \(\dfrac15\cdot \dfrac33=\dfrac3{15}\), \(\dfrac15\cdot \dfrac44=\dfrac4{20}\), \(\dfrac15\cdot \dfrac55=\dfrac{5}{25}\) e \(\dfrac15\cdot \dfrac66=\dfrac{6}{30}\).

c)\(\dfrac{12}7\)

Temos as frações equivalentes \(\dfrac{12}7\cdot \dfrac22=\dfrac{24}{14}\), \(\dfrac{12}7\cdot \dfrac33=\dfrac{36}{21}\), \(\dfrac{12}7\cdot \dfrac44=\dfrac{48}{28}\), \(\dfrac{12}7\cdot \dfrac55=\dfrac{60}{35}\), \(\dfrac{12}7\cdot \dfrac66=\dfrac{72}{42}\).