This week for maths I learnt how to add and subtract fractions with a different denominator, to do this we had to times the denominators by the other denominators to get the common denominator. After that we then had to simplify the equation and add in the mixed number answer. I also had to create a google drawing showing the fractions that if you had the right amount of were the same size.
Number
|
Problem
|
Answer in fractions
|
Simplified
|
Answer in mixed numerals
|
1
|
½ + ¼ =
|
6/8
|
3/4
| |
2
|
⅓ + ¼ =
|
7/12
| ||
3
|
⅙ + ⅛ =
|
14/48
|
7/24
| |
4
|
⅕ + ¼ =
|
9/20
| ||
5
|
⅔ + ⅕ =
|
13/15
| ||
6
|
⅚ + 1/7 =
|
41/49
| ||
7
|
⅖ + ⅜ =
|
31/40
| ||
8
|
⅔ + ⅚ =
|
27/18
|
1 & 9/18
| |
9
|
¾ + 6/8 =
|
48/32
|
24/16
|
1 & 16/32
|
10
|
4/7 + ¾ =
|
37/28
|
1 & 9/28
| |
11
|
7/9 + 6/7 =
|
103/63
|
1 & 49/63
| |
12
|
⅝ + ⅚ =
|
70/48
|
35/24
|
1 & 22/48
|
13
|
3/9 + ¾ =
|
39/36
|
1 & 3/36
| |
14
|
8/5 + 3/7 =
|
71/35
|
2 & 1/35
| |
15
|
9/4 + 8/10 =
|
122/40
|
61/20
|
3 & 2/40
|
Number
|
Problem
|
Answer in fractions
|
Simplify
|
Answer in mixed numerals
|
1
|
⅞ - 2/3
|
5/24
| ||
2
|
⅘ - 1/4
|
11/20
| ||
3
|
7/6 - 2/5
|
23/30
| ||
4
|
4/3 - 2/7
|
22/21
|
1 & 1/21
| |
5
|
7/9 - 4/6
|
6/54
|
3/27
| |
6
|
3/7 - 3/8
|
3/64
| ||
7
|
7/10 - 2/6
|
22/60
|
11/30
| |
8
|
7/4 - 2/9
|
55/36
|
1 & 19/36
| |
9
|
10/11 - 3/4
|
7/44
| ||
10
|
6/12 - 1/4
|
12/48
|
3/12
| |
11
|
4/9 - 5/12
|
3/108
| ||
12
|
17/20 - 7/10
|
30/200
|
15/100
| |
13
|
8/14 - 3/21
|
126/294
|
63/147
| |
14
|
32/40 - 7/20
|
360/800
|
45/100
| |
15
|
15/4 - 17/28
|
352/112
|
176/56
|
3 & 16/112
|
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