3 1/2 + (-7) x (2 2/3 + 1 1/2) = ?
2 answers:
Answer: 77/3 or 25 2/3
Step-by-step explanation:
1. Convert mixed numbers into improper fractions:
3 1/2 = 3*2+1/2 = 7/2
2 2/3 = 2*3+2/3 = 8/3
1 1/2 = 1*2+1 = 3/2
2. Calculate within parentheses
Multiply and divide from left to right
Add and subtract from left to right
Answer:
- 53 2/3
Step-by-step explanation:
3 1/2 + (-7) x (2 2/3 + 1 1/2)
= 7/2 - 7 (8/3 + 11/2)
= 7/2 -7 (49/6)
= 7/2 - 343/6
= - 161/3
= - 53 2/3
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