Answer:Here are the solutions for converting fractions to decimals and decimals to fractions: Fraction to Decimal: 1. 2/3 = 0.67 - Divide the numerator (2) by the denominator (3): 2 ÷ 3 = 0.66666...- Round to two decimal places: 0.672. 9/7 = 1.29 - Divide the numerator (9) by the denominator (7): 9 ÷ 7 = 1.28571...- Round to two decimal places: 1.29 Decimal to Fraction: 1. 0.55 = 11/20 - Step 1: Write the decimal as a fraction with a denominator of 100: 0.55 = 55/100- Step 2: Simplify the fraction by dividing both numerator and denominator by their greatest common factor (5): 55 ÷ 5 = 11 and 100 ÷ 5 = 20.- Result: 0.55 = 11/202. 1.17 = 1 2/17 - Step 1: Separate the whole number part (1) from the decimal part (0.17).- Step 2: Write the decimal part as a fraction with a denominator of 100: 0.17 = 17/100- Step 3: Simplify the fraction by dividing both numerator and denom