Question

please help me faster​

Answer 1

i) 200:400

ii)16:22

iii)110:176

iv)26:34

explanation

i) 20 :40

=20/40

==20×10:40× 10

=200/400= 200:400

ii)8:11

8/11

= 8×2:11×2

=16/22= 16:22

iii)55:88

55/88

=55×2:88×2

=110/176= 110:176

iv) 13 :17

=13/17

=13×2:17×2

=26/34

=26:34

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