Scroll:Fractions >> Addition >> saq (371)


Written Instructions:

For each Multiple Choice Question (MCQ), four options are given. One of them is the correct answer. Make your choice (1,2,3 or 4). Write your answers in the brackets provided..

For each Short Answer Question(SAQ) and Long Answer Question(LAQ), write your answers in the blanks provided.

Leave your answers in the simplest form or correct to two decimal places.



 

1)  

12 + 78 + 34 = 28

Find the numerator of the mixed number above.


Answer:_______________




2)  

12 + 16 + 712 = 14

Find the numerator of the mixed number above.


Answer:_______________




3)  

12 + 25 + 310 = 15

Find the numerator of the mixed number above.


Answer:_______________




4)  

14 + 16 + 1112 = 13

Find the numerator of the mixed number above.


Answer:_______________




5)  

1112 + 23 + 34 = 23

Find the numerator of the mixed number above.


Answer:_______________




6)  

12 + 58 + 34 = 18

Find the numerator of the mixed number above.


Answer:_______________




7)  

12 + 35 + 310 = 15

Find the numerator of the mixed number above.


Answer:_______________




8)  

12 + 16 + 1112 = 112

Find the numerator of the mixed number above.


Answer:_______________




9)  

12 + 15 + 710 = 15

Find the numerator of the mixed number above.


Answer:_______________




10)  

12 + 23 + 16 = 13

Find the numerator of the mixed number above.


Answer:_______________




 

1)  

12 + 78 + 34 = 28

Find the numerator of the mixed number above.

Answer: 1


SOLUTION 1 :

Note: Common multiples of 2, 4 and 8 is 8.

Step 1: 1 x 42 x 4  =  48
  3 x 24 x 2  =  68
Step 2: 48 + 68 + 78  =  178
     =  168 + 18
     =  218

The numerator is 1.



2)  

12 + 16 + 712 = 14

Find the numerator of the mixed number above.

Answer: 1


SOLUTION 1 :

Note: Common multiples of 2, 6 and 12 is 12.

Step 1: 1 x 62 x 6  =  612
  1 x 26 x 2  =  212
Step 2: 612 + 212 + 712  =  1512
     =  1212 + 312
     =  1312
     =  13 ÷ 312 ÷ 3
     =  114

The numerator is 1.



3)  

12 + 25 + 310 = 15

Find the numerator of the mixed number above.

Answer: 1


SOLUTION 1 :

Note: Common multiples of 2, 5 and 10 is 10.

Step 1: 1 x 52 x 5  =  510
  2 x 25 x 2  =  410
Step 2: 510 + 410 + 310  =  1210
     =  1010 + 210
     =  1210
     =  12 ÷ 210 ÷ 2
     =  115

The numerator is 1.



4)  

14 + 16 + 1112 = 13

Find the numerator of the mixed number above.

Answer: 1


SOLUTION 1 :

Note: Common multiples of 4, 6 and 12 is 12.

Step 1: 1 x 34 x 3  =  312
  1 x 26 x 2  =  212
Step 2: 312 + 212 + 1112  =  1612
     =  1212 + 412
     =  1412
     =  14 ÷ 412 ÷ 4
     =  113

The numerator is 1.



5)  

1112 + 23 + 34 = 23

Find the numerator of the mixed number above.

Answer: 1


SOLUTION 1 :

Note: Common multiples of 3, 4 and 12 is 12.

Step 1: 2 x 43 x 4  =  812
  3 x 34 x 3  =  912
Step 2: 812 + 9121112  =  2812
     =  2412 + 412
     =  2412
     =  24 ÷ 412 ÷ 4
     =  213

The numerator is 1.



6)  

12 + 58 + 34 = 18

Find the numerator of the mixed number above.

Answer: 7


SOLUTION 1 :

Note: Common multiples of 2, 4 and 8 is 8.

Step 1: 1 x 42 x 4  =  48
  3 x 24 x 2  =  68
Step 2: 48 + 68 + 58  =  158
     =  88 + 78
     =  178

The numerator is 7.



7)  

12 + 35 + 310 = 15

Find the numerator of the mixed number above.

Answer: 2


SOLUTION 1 :

Note: Common multiples of 2, 5 and 10 is 10.

Step 1: 1 x 52 x 5  =  510
  3 x 25 x 2  =  610
Step 2: 510 + 610 + 310  =  1410
     =  1010 + 410
     =  1410
     =  14 ÷ 210 ÷ 2
     =  125

The numerator is 2.



8)  

12 + 16 + 1112 = 112

Find the numerator of the mixed number above.

Answer: 7


SOLUTION 1 :

Note: Common multiples of 2, 6 and 12 is 12.

Step 1: 1 x 62 x 6  =  612
  1 x 26 x 2  =  212
Step 2: 612 + 212 + 1112  =  1912
     =  1212 + 712
     =  1712

The numerator is 7.



9)  

12 + 15 + 710 = 15

Find the numerator of the mixed number above.

Answer: 2


SOLUTION 1 :

Note: Common multiples of 2, 5 and 10 is 10.

Step 1: 1 x 52 x 5  =  510
  1 x 25 x 2  =  210
Step 2: 510 + 210 + 710  =  1410
     =  1010 + 410
     =  1410
     =  14 ÷ 210 ÷ 2
     =  125

The numerator is 2.



10)  

12 + 23 + 16 = 13

Find the numerator of the mixed number above.

Answer: 1


SOLUTION 1 :

Note: Common multiples of 2, 3 and 6 is 6.

Step 1: 1 x 32 x 3  =  36
  2 x 23 x 2  =  46
Step 2: 36 + 46 + 16  =  86
     =  66 + 26
     =  126
     =  12 ÷ 26 ÷ 2
     =  113

The numerator is 1.