7/8 minus 2/3 is 5/24
You have to get the same common denominator, 9x2 is 18, so 7x2 is 14. 14/18-5/18 is 9/18. 9/9 is 1 and 18/9 is 2, so you are left with 1/2
2 minus -9 is 11.
20 minus 17 minus 3 minus 2 equals -2
(7/9)-(5/18)(14/18)-(5/18)(14-5)/189/181/2 ◄Rule: (a/b)-(c/d) = (ad-bc)/(bd)(126-45)/16281 / 1621 / 2 ■
7/18 - 5/18 = 2/18 = 1/9
6xsquared minus 26x minus 5 over 3xsquared minus 15x
7/8 minus 2/3 is 5/24
You have to get the same common denominator, 9x2 is 18, so 7x2 is 14. 14/18-5/18 is 9/18. 9/9 is 1 and 18/9 is 2, so you are left with 1/2
6/7 - 2/7 = 4/7
2 minus -9 is 11.
20 minus 17 minus 3 minus 2 equals -2
(7/9)-(5/18)(14/18)-(5/18)(14-5)/189/181/2 ◄Rule: (a/b)-(c/d) = (ad-bc)/(bd)(126-45)/16281 / 1621 / 2 ■
1/2 is a half or 0.50 1/3 is a third or 0.33 a half minus a third = 0.17
9 minus 7 = 2
1/2 - 2 = -1.5
6/7 - 2/3 = 18/21 - 14/21 = 4/21