Evaluate
\frac{15x}{49}
Differentiate w.r.t. x
\frac{15}{49} = 0.30612244897959184
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\frac{5x\times 3}{7\times 7}
Multiply \frac{5x}{7} times \frac{3}{7} by multiplying numerator times numerator and denominator times denominator.
\frac{15x}{7\times 7}
Multiply 5 and 3 to get 15.
\frac{15x}{49}
Multiply 7 and 7 to get 49.
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Limits
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