Question

`- (5)/(8) + (1)/(4)`
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Answer 1

`\large\boxed{-(5)/(8)+(1)/(4)=-(3)/(8)}`

Explanation:

`-(5)/(8)+(1)/(4)=(1)/(4)+\left(-(5)/(8)\right)=(1)/(4)-(5)/(8)\\\\\text{find LCD:}\\\\8=2\cdot4,\ \text{therefore. LCD(4, 8) = 8}\\\\(1)/(4)=(1\cdot2)/(4\cdot2)=(2)/(8)\\\\\text{continuing}\\\\=(2)/(8)-(5)/(8)=(2-5)/(8)=-(3)/(8)`