Answer:
Result:
3 56/34 - 5 1/2 = -29
34
≅ -0.8529412
Calculation steps
Conversion a mixed number to a improper fraction: 3 56/34 = 3 · 34 + 56
34
= 158
34
Conversion a mixed number to a improper fraction: 5 1/2 = 5 · 2 + 1
2
= 11
2
Subtract: 158
34
- 11
2
= 158
34
- 11 · 17
2 · 17
= 158
34
- 187
34
= 158 - 187
34
= -29
34
The common denominator you can calculate as the least common multiple of the both denominators - LCM(34, 2) = 34