Respuesta :
Answer:
16. 40 7/5
17. 2 2/3
18. 6
19. 31/3
Step-by-step explanation:
Answer:
Fraction math or rationals.. okay
Step-by-step explanation:
the denominators need to be the same to add or subtract fractions... that is. the number in the bottom part of the fraction.
16) 17+23 + 4/5 +3/5 = 40+7/5 then reduce that improper fraction to 1 2/5
so your answer for looks like 41 2/5
17) 4 1/2 - 2 2/3 get the denominators of the fractions the same first, so multiply (1/2 ) * 3 b/c it's the denominator of the other fraction. so it's 3/6 now.. just another way to represent 1/2 = 3/6 then multiply (2/3 )*2 b/c it's the number in the denominator of the other fraction .. again.. so you have 4/6 =2/3 just another way to write that one too.. so then subtract 3/6-4/6 use that idea of taking one down from the upper digit.. so bring a 1 from the 4 which can be represented as 6/6 =1 add it to 3/6 +6/6 so you have 9/6-4/6=5/6 see? 4 is now 3 from the whole number 3-2=1 and 5/6 is the fraction so 1 5/6
18) 7 - 3 1/3 same idea bring down a whole 1 from the 7 and put it in the form of the other fractions denominator so 3/3- 1/3 = 2/3 then 6-3 = 3 so you have 3 2/3
19) 14 3/4 - 1/6 just do the fractional part 3/4 - 1/6 ... get the denominators the same (3/4 )*6= 18/24 and (1/6)4=4/24 then subtract 18/24-4/24=14/24 and put that fractional part with the whole number so you have 14 14/24 but usually we reduce a fraction if we can.. so 14 7/12 got it?
