Subtracting Mixed Numbers If Jim is 13
the difference in their height? 13
– 4 – 11
– 2 =
Yes, you’ve guessed it: there is more than one way of doing this one as well! (Hint: it’s just like addition.)
Try each of the ways and see which one you prefer. See if you get the same answer each time.
– 4 metres tall and Frank is 11
– 2 metres tall, what is
1. Now try these. a) 17 d) 33
– 8 – 13
– 4
– 4 – 11
– 6
If a bucket contains 11 water is left in the bucket? 11
– 6 – 2
– 3 = 11
– 6 – 4
– 6
Can you spot a problem? How could you solve this problem? Talk about it with the person nearest you. (Hint: you need to borrow – but from where?)
Work out the answer. Remember to reduce your answer to its lowest terms.
2. Now try these. a) 11 d) 41
– 4 – 1
– 2
– 9 – 11
– 6
3. Amy spent 31
b) 15 e) 46
– 9 – 11
– 3
– 7 – 23
– 5
– 6 litres of water and I pour 2
c) 2 7 __
f) 82
10 – 12
– 3 – 5 7
__ 12
– 3 of a litre out of the bucket, how much
– 5
b) 13
– 8 – 3
e) 5 1 __
– 4
12 – 23
– 8
– 4 hours in her bedroom. If she spent 5
c) 23 f) 32
– 6 of an hour
watching TV and the rest of the time reading, how long did she spend reading? When you get your answer as a fraction, change it to hours and minutes.
– 5 – 1 9
– 5 – 13
– 4
__ 10
112 Fractions 3
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