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Romashka-Z-Leto [24]
3 years ago
8

when your cousin was born, she was 21 4/5 inches long. when your friends was born he was 21 3/4 inches long. who was longer at b

irth? how much longer?​
Mathematics
1 answer:
Alborosie3 years ago
5 0
  • <em>Answer:</em>

<em>cousin</em>

<em>1/20 inches</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>cousin</em>

<em>21 4/5 = (21×5+4)/5 = 109/5</em>

<em>friend</em>

<em>21 3/4 = (21×4+3)/4 = 78/4</em>

<em />

<em>lcm(4 ; 5) = 20</em>

<em>⁴⁾109/5 = 436/20 (cousin)</em>

<em>⁵⁾87/4 = 435/20 (friend)</em>

<em>436/20 > 435/20</em>

<em>cousin > friend</em>

<em>436/20 - 435/20 = 1/20 inches longer (cousin)</em>

<em>Good luck !</em>

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