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Enrico spent 0.4 hour completing his math homework. Then he spent 7 over 20 hour completing his science homework. What is the total number of hours Enrico spent on his math and science homework?
3 years ago

Answers

oobleck
0.4 + 7/20 = 0.4 + 0.35 = 0.75
or
2/5 + 7/20 = 8/20 + 7/20 = 15/20 = 3/4
3 years ago

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