A:1 3/4=1 3/4*7/4

To solve the equation \( a: \frac{7}{4} = \frac{7}{4} \), we first need to understand what is being asked.

It seems like you might want to evaluate the expression \( 1 \frac{3}{4} \times \frac{7}{4} \). Let's calculate that step-by-step.

1. Convert \( 1 \frac{3}{4} \) into an improper fraction: \[ 1 \frac{3}{4} = \frac{4 \times 1 + 3}{4} = \frac{4 + 3}{4} = \frac{7}{4} \]

2. Now multiply \( \frac{7}{4} \) by \( \frac{7}{4} \): \[ \frac{7}{4} \times \frac{7}{4} = \frac{7 \times 7}{4 \times 4} = \frac{49}{16} \]

So, \( 1 \frac{3}{4} \times \frac{7}{4} = \frac{49}{16} \).

If you meant something different by your original expression, please clarify!