A
Solve: 2 1/2 + 1 1/5 =
2 5/10 + 1 2/10 =
3 7/10
Solve: 1/3 - 1/5 =
5/15 - 3/15 =
2/15
Solve: 1/2 + 7/9 =
9/18 + 14/18 =
23/18 = 1 5/18
Solve: 3 2/3 - 2 3/4 =
3 8/12 - 2 9/12 =
2 20/12 - 2 9/12 =
11/12
Will the difference be greater or less than 1?
1 5/12 - 1/2
less than 1
Will the sum be greater or less than 1?
5/8 + 3/5
greater than 1
Will the difference be greater or less than 1?
4 3/5 - 3 3/4
Will the sum be greater or less than 1?
2/7 + 1/3
less than 1
Bailey and Madison were jogging on Monday, Tuesday and Wednesday.
Bailey ran ½ mile on Monday and ⅓ mile on Tuesday.
Madison ran 3/6 mile on Monday and ⅓ mile on Wednesday.
Madison says altogether she jogged more than Bailey. Is Madison correct?
Bailey: 1/2 + 1/3 = 3/6 + 2/6 = 5/6 mile
Madison: 3/6 + 1/3 = 3/6 + 2/6 = 5/6 mile
Madison is incorrect because she and Bailey ran the same amount.
Abby bought a sandwich for $ 5 3/4 and a drink for $ 2 1/2.
If she paid for her meal with a $10 bill, how much money does she now have left?
$ 5 3/4 + $ 2 1/2 =
$ 5 3/4 + $ 2 2/4 =
$ 7 5/4 or $ 8 1/4 spent
$10 - $ 8 1/4 =
$9 4/4 - $8 1/4 = $1 3/4 ($1.75) left
Alexis bought a 5 lb bag of coffee at Costco.
She used 1 1/3 lbs during the month of January, and 2 1/4 lbs during the month of February.
How much coffee does Alexis have left?
1 1/3 + 2 1/4 =
1 4/12 + 2 3/12 = 3 7/12 lbs used
5 - 3 7/12 =
4 12/12 - 3 7/12 = 1 5/12 lb left
Brad and Chad are watching the same series on Netflix.
Brad watches 1/5 of the series on Monday and 2/3 on Thursday.
Chad watches 1/4 on Tuesday and 5/6 on Friday.
Who watched more of the series?
Brad: 1/5 + 2/3 = 3/15 + 10/15 = 13/15
Chad: 1/4 + 5/6 = 3/12 + 10/12 = 13/12 or 1 1/12
Chad watched more!
John is traveling 10 hours.
On day 1 he travels 4 4/5 hours.
On day 2 he travels 3 2/3 hours.
How many hours does John have left to travel?
4 4/5 + 3 2/3 =
4 12/15 + 3 10/15 =
7 22/15 or 8 7/15 hours traveled so far
10 - 8 7/15 =
9 15/15 - 8 7/15 =
** 1 8/15 hours left to travel **
Katie and Lucas were playing video games on Friday, Saturday and Sunday.
Katie played 1 ¾ hours on Friday and 3 ½ hours on Sunday.
Lucas played 1 4/8 hours on Saturday and 3 ¼ hours on Sunday.
Lucas says altogether he spent more hours playing video games than Katie. Is Lucas correct?
Katie: 1 3/4 + 3 1/2 = 1 3/4 + 3 2/4 =
4 5/4 or 5 1/4 hours
Lucas: 1 4/8 + 3 1/4 = 1 4/8 + 3 2/8 =
4 6/8 hours
Lucas is incorrect because Katie spent more hours playing video games.
MCPS students are on Zoom for school for 6 hours.
Fifth graders spend 2 1/2 hours online before a lunch break.
Students get a break for 3/5 of an hour.
How many hours do 5th graders have left online after lunch?
2 1/2 + 3/5 =
2 5/10 + 6/10 =
2 11/10 or 3 1/10 hours before lunch
6 - 3 1/10 =
5 10/10 - 3 1/10 = 2 9/10 hours left online after lunch
Every week, Jackie buys 6 1/2 kg of dog food.
She uses 1 1/3 kg to feed her dog, Luigi.
She gave away 1 1/2 kg to feed her neighbors dog.
How many kilograms of dog food does Jackie have left?
6 1/2 - 1 1/2 = 5 kg (after giving away to neighbor)
5 - 1 1/3 =
4 3/3 - 1 1/3 =
** 3 2/3 kg left after feeding Luigi