45 /9+72 /-8 /3*4-4*6
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Subtracting two positive fractional numbers, or adding one positive and one negative integer.
for integers with tow different signs, it will always be negative in multiplying and division. for adding and subtracting, the sign is for the bigger number.
Say you're adding -2+(-2). Adding negative two is equavilant to subtracting positive two. Both -2+(-2) would be -4. I hope that made sense.
4/9 - 6/36
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