Step 1: Find a common denominator for the fractions.
The denominators are 7 and 5. The least common multiple (LCM) of 7 and 5 is 7×5=35.
Step 2: Convert both fractions to equivalent fractions with the common denominator.
73=7×53×5=3515
51=5×71×7=357
Step 3: Subtract the new fractions.
3515−357=3515−7=358
Step 4: The fraction 358 cannot be simplified further as 8 and 35 share no common factors other than 1.
The final answer is 358.
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