2007-06-30 04:52:19 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
First, you need common denominators:
5 5/10 - 2 7/10=?
Then, convert to improper fractions:
55/10 - 27/10=?
Subtract the numerators:
28/10=?
Simplify:
2 8/10 = 2 4/5
2007-06-30 05:36:11 · answer #1 · answered by Jellen 2 · 0⤊ 0⤋
= 11/2 - 27/10
= 55/10 - 27/10
= 28/10
= 14/5
= 2 4/5
OR
= 5 5/10 - 2 7/10
= 4 15/10 - 2 7/10
= 2 8/10
= 2 4/5
OR
= 3 (1/2 - 7/10)
= 3(5/10 - 7/10)
= 2 (15/10 - 7/10)
= 2 8/10
= 2 4/5
2007-07-03 18:32:10 · answer #2 · answered by Como 7 · 0⤊ 0⤋
? = 5 1/2 - 2 7/10
? = 5 5/10 - 2 7/10
? = 4 15/10 - 2 7/10
? = 2 8/10
? = 2 4/5
I hope this helps.
2007-07-04 10:18:58 · answer #3 · answered by Jun Agruda 7 · 2⤊ 0⤋
5 1/2-2 7/10= (5*2+1)/2 - (2*10 + 7)/10
= 11/2 - 27/10
= (11*5 - 27)/10
= 28/10
= 2.8
2007-06-30 12:04:48 · answer #4 · answered by Sam 3 · 0⤊ 0⤋
It might be easier if you don't look at it as fractions-
5 1/2 = 5.5
2 7/10 = 2.7
Those are fraction/decimal conversions that you ought to know if they let you out of the third grade, so from there you just subtract like you were taught way back when-
5.5-2.7 = 2.8
2007-06-30 12:18:17 · answer #5 · answered by Anonymous · 0⤊ 0⤋
5.5-2.7=2.8 or 2 1/5
2007-06-30 12:05:35 · answer #6 · answered by Anonymous · 0⤊ 0⤋