7/9-(-13/18)
2007-10-11 16:07:18 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
First get the same denominator. Use the LCM for this, which is 18.
You will need to multiply 7/9 by 2 to get
14/18
with two negatives the subtraction becomes a positive
14/18 + 13/18
27/18
3/2 = 1 1/2
Hope this helps =]
2007-10-11 16:17:08 · answer #1 · answered by marikrismas 3 · 0⤊ 0⤋
= 7/9 - (- 13/18)
= 7/9 + 13/18
= 14/18 + 13/18
= 27/18
= 3/2
= 1 1/2
2007-10-11 23:49:33 · answer #2 · answered by Jun Agruda 7 · 2⤊ 0⤋
14/18 + 13/18 = 27/18 = 3/2 = 1½
2007-10-12 03:57:52 · answer #3 · answered by Como 7 · 0⤊ 0⤋
make 7/9 to 14/18. 7/9=14/18
double neg = positive
so 14/18 + 13/18 = 27/18
reduced
3/2
2007-10-11 23:15:17 · answer #4 · answered by Anonymous · 0⤊ 0⤋
First you do what is in the brackets so you have 7/9-(- .722). Next you do the division so .778 - ( -.722). Minus a minus turns into a plus. .778 + .722 = 1.5
2007-10-11 23:52:57 · answer #5 · answered by dadvice1 5 · 0⤊ 0⤋