4:7-69*87

Let's evaluate the expression step-by-step: Expression: 4:7 - 69 * 87 First, interpret the division symbol ':' as division: 1. Divide 4 by 7: \[ \frac{4}{7} \approx 0.5714 \] 2. Calculate 69 * 87: \[ 69 \times 87 \] Break down 87: \[ 69 \times 87 = 69 \times (80 + 7) = 69 \times 80 + 69 \times 7 = 5520 + 483 = 6003 \] 3. Now, subtract: \[ 0.5714 - 6003 \approx -6002.4286 \] **Final answer: approximately -6002.43**