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3/8 + -2/5 = 3/8 - 2/5

= (3×5)/(8×5) - (2×8)/(5×8)

= 15/40 - 16/40

= (15-16)/40

= -1/40

(negative one fortieth.)

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โˆ™ 2017-10-03 20:41:27
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Q: What is three eighths plus negative two fifths?
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