Asked by Anthony
Pedro spent 2 1/5 hours on his math himework and half as lomg on his science homework one weekend. If his english and social studies homework took 7/8 as long, how much time did he spent on homework that weekend?
Answers
Answered by
Reiny
add:
2 1/5 + (1/2)(2 1/5) + (7/8)(2 1/5)
= 11/5 + (1/2)(11/5) + (7/8)(11/5)
= 11/5 + 11/10 + 77/40
take over, the LCD is 40
2 1/5 + (1/2)(2 1/5) + (7/8)(2 1/5)
= 11/5 + (1/2)(11/5) + (7/8)(11/5)
= 11/5 + 11/10 + 77/40
take over, the LCD is 40
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