10/14 - 9/14 = 1/14
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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
y+9=14 subtract 9 from each side to get y by itself y=5
(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 ■
CorrectFor instance, 2 + 5 + 9 +14 = 7 + 9 + 14 = 16 + 14 = 30(2 + 5) + (9 + 14) = 7 + 23 = 302 + (5 + 9) + 14 = 2 + 14 +14 = 16 + 14 = 302 + (5 + (9 + 14)) = 2 + (5 + 23) = 2 + 28 = 30
It is: 2/7+5/14 is the same as 4/14+5/14 = 9/14