Question

Copie e complete no caderno de forma a
obter trações equivaleantes:
a)2/7×3=
b)1/2×10=
c)11/6=33/ = /30
d)2/3= /24=40/ .

Mim ajudem por favor!
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Answer 1

a)

$\sf \dfrac{2}{7}=\dfrac{2\times3}{7\times3}=\dfrac{6}{21}$

b)

$\sf \dfrac{1}{2}=\dfrac{1\times10}{2\times10}=\dfrac{10}{20}$

c)

$\sf \dfrac{5}{17}=\dfrac{5\times3}{17\times3}=\dfrac{15}{51}$

d)

$\sf \dfrac{12}{8}=\dfrac{12\div4}{8\div4}=\dfrac{3}{2}$

e)

$\sf \dfrac{10}{15}=\dfrac{10\div5}{15\div5}=\dfrac{2}{3}$

f)

$\sf \dfrac{30}{140}=\dfrac{30\div10}{140\div10}=\dfrac{3}{14}$