Math adding and subtracting fractions
2006-11-13 09:59:29 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
make them into improper fractions. 3/2 - 14/5. find a common denomenator such as 10 so 15/10- 28/10 so the answer would be -13/10 or -1 3/10
2006-11-13 10:04:09 · answer #1 · answered by kate 2 · 0⤊ 0⤋
1 1/2 can be written as 3/2. Think of it like this: you have 1 which you can write as 2/2 and then you a half as well. Take that 2/2 and add to it the 1/2 and you get 3/2. Next, convert the 2 4/5 to 14/5. How you ask? The 2 is written as 10/5 (that's because, 10 divided by 5 is 2, and since you can only add fractions that have the same denominator, that is how you should write it. Now you have the equation 3/2 - 14/5. To get the denominators the same, the lowest common denomitor is 10. Mulitply 3/2 times 5 and 14/5 by 2. This now gives you 15/10 - 28/10. Simply subtractions leads you to -13/10 or -1 3/10
2006-11-13 18:07:45 · answer #2 · answered by PunkVader 3 · 0⤊ 0⤋
3 1/10
2006-11-13 18:06:37 · answer #3 · answered by Daniel H 2 · 0⤊ 0⤋
-1 - 3/10
2006-11-13 18:03:27 · answer #4 · answered by Hershii 2 · 0⤊ 0⤋
Answer is -1 3/10
2006-11-13 18:03:06 · answer #5 · answered by Y! 0.99 2 · 1⤊ 0⤋