2007-10-02 06:16:50 · 13 answers · asked by dj 1 in Science & Mathematics ➔ Mathematics
47/30 or 1.566666..........
Work:
5 2/5= 25/5 + 2/5 and 3 5/6 = 18/6+5/6
So,
27/5-23/6 (mult all by 6 to get a common denominator)...... 162/30-115/30
=47/30
2007-10-02 06:23:19 · answer #1 · answered by CCBB 4 · 0⤊ 1⤋
5 2/5 - 3 5/6 = 5 12 /30 - 3 25 / 30 =4 42 /30 -3 25/30 =1 17/30 or 1.5666
2007-10-02 06:24:17 · answer #2 · answered by Anonymous · 0⤊ 0⤋
You want to convert the numbers into fractions. So...
5 and 2/5 is equal to 5 "5/5" + 2/5...therefore, 5 2/5 is equal to: 27/5.
Same with 3 and 5/6, which is: 23/6.
So now, you have 27/5 - 23/6; you have to find the common denominator. Usually you can do this by multiplying the two denominators by each other. BUT NOTE: whatever you multiply the denominator by, you need to multiply the numerator by. So...
The CD (Common Denominator) of 27/5 and 23/6 is 30 (5 * 6)
Now, you multiply 5 times 6 to get thirty, so do the same with 27. Same with 23: you multiply 6 by five to get 30, so do the same with 23. Your new fractions are...
162/30 - 115/30. Now, you subtract the NUMERATORS to get:
47/30 or 1 17/30. Hope this helps.
2007-10-02 06:26:37 · answer #3 · answered by zenmaster4 2 · 0⤊ 1⤋
5 2/5 - 3 5/6 =
Convert the mixed number to a improper fraction
27 / 5 - 23 / 6 =
The common denominator is 30
162 / 30 - 115 / 30 =
Subtract the numerator
47 / 30 =
1 17/30
- - - - - - - - s-
2007-10-02 06:50:07 · answer #4 · answered by SAMUEL D 7 · 1⤊ 1⤋
5 2/5 - 3 5/6
= 27/5 -23/6 <-- Change mixed number to improper fraction
= 162/30 - 115/30 <-- Make denominators the same
=47/30 <-- Now you can subtract
= 1 17/30 <-- Change back to mixed number
2007-10-02 06:28:52 · answer #5 · answered by ironduke8159 7 · 2⤊ 0⤋
5 2/5 - 3 5/6 is...
5 12/30 - 3 25/30 which is...
4 42/30 - 3 25/30 which is...
4 - 3 + (42-35) /30 which is...
1 7/30
2007-10-02 06:28:53 · answer #6 · answered by Anonymous · 0⤊ 1⤋
Convert to LCD, gives you 5 12/30 - 3 25/30, or
162/30 - 115/30. That gives you 47/30, or 1 17/30
2007-10-02 06:24:04 · answer #7 · answered by champer 7 · 0⤊ 0⤋
5 2/5-3 5/6
=27/5 -23/6
=162/30 -115/30
=47/30
=1 17/30.ANS.
2007-10-02 06:38:57 · answer #8 · answered by Anonymous · 0⤊ 1⤋
1 17/30
2007-10-02 06:25:19 · answer #9 · answered by Anonymous · 0⤊ 0⤋
5 12/30 - 3 25/30
4 42/30 - 3 25/30
1 17/30
2007-10-02 06:38:54 · answer #10 · answered by Como 7 · 3⤊ 0⤋