SOLUTION: First has estimate the answer. Then subtract to find the exact answer? I need help? (22 4/9)-(3 9/15)=

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Question 833649: First has estimate the answer. Then subtract to find the exact answer? I need help?
(22 4/9)-(3 9/15)=
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
(22 4/9)-(3 9/15)=
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Borrow 1 from the 22 to get:
(21 13/9)- (3 3/5)
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Find the lcm of 9 and 5
lcm = 45
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(21 65/45) - (3 27/45)
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= 18 38/45
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Cheers,
Stan H.
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