Collins was 7 years 3 months old when he joined school. Today he is 13 years and 2 months. For how long has he been in school?
1 answer:
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Answer:
9/25
Step-by-step explanation:
find a number that both the top and bottom are divisible by,
23 is the greatest common division we can make such that the top and bottom remain whole numbers
so,
÷23
=(207/23)÷(575/23)
=