9/6 + 4/6 = 13/6 = 2 and 1/6
2 over4, 1 over2
4/3 since 1 and 1/3 = 3/3 + 1/3 = (3+1)/3 = 4/3
1 - 1/3 = 3/3 - 1/3 = 2/3
Because the cube of a positive number is positive and the cube of a negative number is negative.-------------------------------------------------------------------------------------------------------------------------------Every number has THREE cube roots. However, (at least) two of the three are complex numbers.For example, the cube roots of 8 are 2, (-1 + √3 i) and (-1 - √3 i) with i² = -1:2³ = 2 × 2 × 2 = 8(-1 + √3 i)³ = (-1 + √3 i)(-1 + √3 i)(-1 + √3 i)= (-1 + √3 i)((-1)² - 2√3 i + 3i²)= (-1 + √3 i)(1 - 2√3 i -3)= (-1 + √3 i)(-2 - 2√3 i)= (-1 + √3 i)(-1 - √3 i)2= ((-1)² - 3i²)2= (1 + 3)2= 4 × 2 = 8(-1 - √3 i)³ = (-1 - √3 i)(-1 - √3 i)(-1 - √3 i)= (-1 - √3 i)((-1)² + 2√3 i + 3i²)= (-1 - √3 i)(1 + 2√3 i -3)= (-1 - √3 i)(-2 + 2√3 i)= (-1 - √3 i)(-1 + √3 i)2= ((-1)² - 3i²)2= (1 + 3)2= 4 × 2 = 8
3/4 > 1/2
3/5 - 1/2 = 1/10
280
1/2 = 50%
9/6 + 4/6 = 13/6 = 2 and 1/6
7 over2
7 1/2 - 4 1/6:= 7-4 + (1/2 - 1/6)= 3 + [(3 - 1)/6]= 3 + 2/6= 3 + 1/3= 3 1/3
The LCD for working with those fractions is 8 (or 1/8)
10 - 41/2 = 51/2
2 over4, 1 over2
% rate:= (3/2) x 100%= 1.5 x 100%= 150%
1/2 ÷ 7/8 = 4/7