On their vacation, the Reikos spent 1/4 of their money on gas, 3/5 on food and lodging, and 1/8 on tourist attraction.
a) what fraction of their money did they spend?
b)If they started with $1840.00, how much did they have left?
So I did part a, like this
1/4, 1/8, 3/5 find common denominator
10/40, 5/40, 16/40 then add
10/40 + 5/40 + 16/40 = 31/40 now conclude
The Reikos spent 31/40 of their total money on their vacation spendings.
So is this the best way to approach this problem or is there an alternative?
2007-03-10 13:38:37 · 7 answers · asked by Janan A 1 in Science & Mathematics ➔ Mathematics
Yes there is an error.
2007-03-10 13:49:11 · update #1
well 3/5 is not equal to 16/40. It's 24/40 so your total is now 39/40
Which means that they didn't spend 1/40 of their money. So find 1/40 of their beginning money. 1840/40=$46
2007-03-10 13:50:47 · answer #1 · answered by MLBfreek35 5 · 0⤊ 0⤋
You have the right idea. However 16/40 = 2/5. It should be 24/40.
2007-03-10 13:47:09 · answer #2 · answered by greymatter 6 · 0⤊ 0⤋
When you change to 40ths:
10/40 + 5/40 + 24/40 (not 16/40) = 39/40 spent
Part b:
1/40 * 1840 = $46.00 left
2007-03-10 13:45:15 · answer #3 · answered by ecolink 7 · 0⤊ 0⤋
i could use a Texas device.. additionally frequently happening as a clinical Calculator. whether you could no longer get one, get a calculator that permits you to do fractions, Pi, and so forth. ninth graders usually initiate of HS with Algebra. So i could get any calculator that shows the substantial buttons that are in that direction. i'm in tenth grade and math isn't so no longer elementary, yet you could distinguish it between midsection college math and hs math.
2016-12-18 19:46:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Your approach is good, but there's an error in one of your conversions. Check your work. Also note that the second part asks for how much is left, not how much they spent.
2007-03-10 13:46:34 · answer #5 · answered by etopro 2 · 0⤊ 0⤋
so close but so far.... it sux when you know what to do but a mistake in the beginning screws up everything to follow....
go back and recheck how you found your commone denominator for the 3 fractions
2007-03-10 13:49:24 · answer #6 · answered by Zuri 3 · 0⤊ 0⤋
yea i think this is the best way
2007-03-10 13:56:28 · answer #7 · answered by Brenda Y 1 · 0⤊ 0⤋