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It is easier to add two fractions together if you convertb them to the same values. You can convert both of these fractions to 20ths quite easily.

3/4 is equal to 15/20ths and 9/10ths is equal to 18/20ths, Simply add them together to find 15/20 + 19/20 = 34/20 now reduce this to a proper fraction... 1 and 14/20ths which can be simplfied to 1 and 7/10ths.

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14y ago
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Q: What does three fourths plus nine tenths equal?
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