One young mouse weighs 3/10 of an ounce. Another weighs 45/100 of an ounce.

What is the total weight of the mice?

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(write it like this) x/100 oz

if you want to explain go ahead

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75/100 oz is he total weigh of both mice.

To solve this:

1) find common denominator (which is 100)

2) multiply the 3/10 by 10==> 30/100

3.) add the numerator: 30+45=75

4.) Answer is 75/100 which can be simplified to 3/4