1.

Find \frac{7}{24}-\frac{17}{36}

Answer»

L C M of 24 and 36 is 727*3/24*3 - 17*2/36*221/72 - 34 /72-11/72

7/24 - 17/36 =(7×3-17×2)/72 =(21-34)/72 =-13/72



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