-13-(-5)= -8
1/2=2/4, 2+7=9
1/2+7/4=9/4 or 2 1/4.
To add fractions, just add the numerators. If the denominators aren't the same, find the least common multiple of the denominators.
There are 60 seconds in a minute. So there are 36 times 60 seconds, or 2160 seconds in 36 minutes.
Watermelons are actually 92% water, so there you go!
4.544 times 10^-3
19..................OMG!!!
My bad.... 4-2=2 2-3= -1 Slope is -2.
I'm really sorry for the confusion.
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Let's turn these fractions into ones with common denominators first. The LCD of 8 and 12 is 24. 24/8=3, and 5 times 3 equals 15. 24/12=2, and 7 times 2 equals 14.
So.... we end up with 15/24+14/24. 15+14=29. Therefore, 5/8+7/12=29/24, or 1 5/24.
-22/18= -1 2/9, 89-22+19=86
86 x -1 2/9 is -105 1/9