Question

Rearrange suitably and find the sum: -6/5 + 7/21 + (-7/3) + (-8/10)

Answer 1

$= ( - 6 \div 5) + (7 \div 21) + ( - 7 \div 3) + ( - 8 \div 10) \\ = - (6 \div 5) - (4 \div 5) + (7 \div 21) - (49 \div 21) \\ = - 2 - 2 \\ = - 4$