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4/7 - 2/5 = 6/35.

To subtract (or add) fractions make both fractions equivalent fractions with the same denominator. The LCM (Lowest Common Multiple) of 7 and 5 is 35, so convert both the fractions to equivalent fractions out of 35:

4/7 = 20/35

2/5 = 14/35

The subtraction can now be done:

4/7 - 2/5 = 20/35 - 14/35 = 6/35

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โˆ™ 2010-04-23 19:47:29
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Q: What is 4 over 7 subtract 2 over 5?
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