Lovelailab
Lovelailab
19-09-2016
Mathematics
contestada
Is 14/35 and 21/42 proportional
Respuesta :
Peppermint98
Peppermint98
19-09-2016
1.Simplified each one
2/5 (both divided by 7) , 1/2 (divided by 21)
2.Make them into integer
(2/5 )*(2/2)=4/10 , (1/2)*(5/5)=5/10
Now the dominators are the same ,you can just compare the numerators. It is 4:5
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2.(a+bc)+cb+ab+ac-3.(ab-cb-ba+bc)
