What is 1 4/5 + 2 3/20 +5/ 3

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asked Aug 2, 2017 45.4k views

5 votes

What is 1 4/5 + 2 3/20 +5/ 3

Mathematics
middle-school

Federico Baron asked

by Federico Baron

7.7k points

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1 Answer

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$1 (4)/(5) +2 (3)/(20) + (5)/(3) \\ \\ 3 + (4)/(5) + (3)/(20) + (5)/(3) \\ \\ LCD = 60 \\ \\ 3 + (4 * 12)/(5 * 12) + (3 * 3)/(20 * 3) + (5 * 20)/(3 * 20) \\ \\ 3 + (48)/(60) + (9)/(60) + (100)/(60) \\ \\ 3 + (48 + 9 + 100)/(60) \\ \\ 3 + (157)/(60) \\ \\ 3 + 2 (37)/(60) \\ \\ 5 (37)/(60) \\ \\ Answer: \fbox {5 37/60} \ or \ \fbox {5.6167}$