Simplify the following expressions:
a) 11b + b/2
b) 2w+ (3w+2)/3
c) 2w - (3w+2) / 3
d) 2w - (3w-2) / 3
e) 2w- (3w-2)/3 +2
P.S : all those equations like 3w - 2 / 3 means
the 3w - 2 is above 3 (like fractions).
2007-03-30 19:53:53 · 4 answers · asked by Anonymous in Education & Reference ➔ Homework Help
a) 11b + b/2 = 11(1/2)b
b) 2w + (3w+2)/3 = 2w + w +2/3= 3w + 2/3
c) 2w - (3w+2)/3 = 2w - w -2/3= w - 2/3
d) 2w - (3w-2) / 3 = 2w -w +2/3 = w + 2/3
e) 2w- (3w-2)/3 +2 = 2w - w + 2/3 +2 = w +2(2/3)
note: 11(1/2) = 11.5
2(2/3)= 2.6666667
2007-03-30 23:55:47 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Unless I am missing something obvious, these seem relatively simple---just multiple by the denominator to get rid of the fraction and then combine like items. For example:
a) 11b + b/2 Multiply by 2
2(11b) + 2(b/2) solve
22b + b Combine
23b
e) 2w-(3w-2)/3 + 2 multiply by 3
3(2w) - 3(3w-2)/3 + 3(2) solve
6w - 3w + 2 + 6 (In this one you have to remember that when you subtract a negative, it becomes positive) Combine
3w + 8
Using those examples, why don' t you try the others on your own.
2007-03-31 03:05:41 · answer #2 · answered by Lillian L 5 · 1⤊ 0⤋
the answer for (a) in answer num. 1 is wrong actually....
11b = 22b/2
hence,
22b/2 + b/2 = 23b/2
b) 2w + (3w+2)/3 = 6w/3 + (3w+2)/3
= (9w+2)/3
the others apply the same principal.....just change the non-fraction into a fraction with the same denominator...then sum or minus it.....boom....ur answer is there...
God bless
2007-03-31 08:46:00 · answer #3 · answered by dnlbock 2 · 0⤊ 0⤋
11b +b/2= Multiply all by 2
22b+b=23b
2w+(3w+2)/3 Multiply all by 3
6w +3w+2
9w +2
2w-(3w+2)/3 Multiply all by 3
6w-3w-2
3w-2
2w -(3w-2)/3 Multiply all by 3
6w-3w+2
3w+2
2w-(3w-2)/3 +2 Multiply all by 3
6w-3w+2+6
3w+8
2007-03-31 10:10:01 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋