(a) \( 4.7-7.8 \times 0.3: 1.36 \) (o) \( -3.48+(7.36+1.24) \times 0.6=1 \) (e) \( -2.65-\frac{1.44}{-1.2}+3.22=1.77 \)

Calculate the value by following steps: - step0: Calculate: \(-3.48+\left(7.36+1.24\right)\times 0.6\) - step1: Add the numbers: \(-3.48+8.6\times 0.6\) - step2: Multiply the numbers: \(-3.48+5.16\) - step3: Add the numbers: \(1.68\) Calculate or simplify the expression \( 4.7-7.8*0.3/1.36 \). Calculate the value by following steps: - step0: Calculate: \(4.7-\frac{7.8\times 0.3}{1.36}\) - step1: Multiply the numbers: \(4.7-\frac{2.34}{1.36}\) - step2: Divide the terms: \(4.7-\frac{117}{68}\) - step3: Convert the expressions: \(\frac{47}{10}-\frac{117}{68}\) - step4: Reduce fractions to a common denominator: \(\frac{47\times 34}{10\times 34}-\frac{117\times 5}{68\times 5}\) - step5: Multiply the numbers: \(\frac{47\times 34}{340}-\frac{117\times 5}{68\times 5}\) - step6: Multiply the numbers: \(\frac{47\times 34}{340}-\frac{117\times 5}{340}\) - step7: Transform the expression: \(\frac{47\times 34-117\times 5}{340}\) - step8: Multiply the numbers: \(\frac{1598-117\times 5}{340}\) - step9: Multiply the numbers: \(\frac{1598-585}{340}\) - step10: Subtract the numbers: \(\frac{1013}{340}\) Calculate or simplify the expression \( -2.65-1.44/-1.2+3.22 \). Calculate the value by following steps: - step0: Calculate: \(-2.65-\frac{1.44}{\left(-1.2\right)}+3.22\) - step1: Remove the parentheses: \(-2.65-\frac{1.44}{-1.2}+3.22\) - step2: Use the rules for multiplication and division: \(-2.65+\frac{1.44}{1.2}+3.22\) - step3: Divide the terms: \(-2.65+\frac{6}{5}+3.22\) - step4: Add the numbers: \(0.57+\frac{6}{5}\) - step5: Convert the expressions: \(\frac{57}{100}+\frac{6}{5}\) - step6: Reduce fractions to a common denominator: \(\frac{57}{100}+\frac{6\times 20}{5\times 20}\) - step7: Multiply the numbers: \(\frac{57}{100}+\frac{6\times 20}{100}\) - step8: Transform the expression: \(\frac{57+6\times 20}{100}\) - step9: Multiply the numbers: \(\frac{57+120}{100}\) - step10: Add the numbers: \(\frac{177}{100}\) Let's solve each expression step by step. ### (a) \( 4.7 - 7.8 \times 0.3 : 1.36 \) 1. **Calculate \( 7.8 \times 0.3 \)**: \[ 7.8 \times 0.3 = 2.34 \] 2. **Now divide by \( 1.36 \)**: \[ \frac{2.34}{1.36} \approx 1.720588 \] 3. **Finally, subtract from \( 4.7 \)**: \[ 4.7 - 1.720588 \approx 2.979412 \] So, the result for (a) is approximately \( 2.979412 \). ### (o) \( -3.48 + (7.36 + 1.24) \times 0.6 = 1 \) 1. **Calculate \( 7.36 + 1.24 \)**: \[ 7.36 + 1.24 = 8.6 \] 2. **Now multiply by \( 0.6 \)**: \[ 8.6 \times 0.6 = 5.16 \] 3. **Finally, add to \( -3.48 \)**: \[ -3.48 + 5.16 = 1.68 \] So, the result for (o) is \( 1.68 \). ### (e) \( -2.65 - \frac{1.44}{-1.2} + 3.22 = 1.77 \) 1. **Calculate \( \frac{1.44}{-1.2} \)**: \[ \frac{1.44}{-1.2} = -1.2 \] 2. **Now substitute back into the expression**: \[ -2.65 - (-1.2) + 3.22 \] 3. **This simplifies to**: \[ -2.65 + 1.2 + 3.22 \] 4. **Calculate step by step**: - First, \( -2.65 + 1.2 = -1.45 \) - Then, \( -1.45 + 3.22 = 1.77 \) So, the result for (e) is \( 1.77 \). ### Summary of Results: - (a) \( \approx 2.979412 \) - (o) \( 1.68 \) - (e) \( 1.77 \)