Question

Add the following fractions:
I. 7+2/5
ii. 5/4+1/6
iii. 1-7/11
iv. 3 2/5+1/3
v. 5/7+1/3
vi. 3 2/7+2 1/3​

Answer 1

Answer :

(i) 7 + 2/5

= ( 7(5) + 2 ) / 5

= ( 35 + 2 ) / 5

= 37 / 5

(ii) 5/4 + 1/6

= ( 5(6)+1(4) ) / (4)(6)

= ( 30 + 4 ) / 24

= 34/24

= 17/12

(iii) 1 - 7/11

= ( 1(11)-7 ) / 11

= ( 11 - 7 )/11

= 4/11

(iv) 3 2/5 + 1/3

= ( 3(5)+2 ) / 5 + 1/3

= (15 + 2)/5 + 1/3

= 17/5 + 1/3

= ( 17(3) + 1(5) ) / (5)(3)

= ( 51 + 5 ) / 15

= 56 / 15

(v) 5/7 - 1/3

= ( 5(3) - 1(7) ) / (7)(3)

= ( 15 - 7 )/21

= 8/21

(vi) 3 2/7 + 2 1/3

= ( 3(7)+2 ) / 7 + ( 2(3)+1 ) / 3

= ( 21 + 2 ) / 7 + ( 6 + 1 ) / 3

= 23/7 + 7/3

= ( 23(3) + 7(7) ) / (7)(3)

= ( 69 + 49 ) / 21

= 118 / 21

Answer 2

Answer:

1) 7.4 2)1.41666 3)0.3636 4)3.7333 5)1.0476 6)5.6190