Question

Fill in the missing fraction

(a) 7/10 - .... = 3/10

(b) ... - 3/21 = 5/21

(c) .... - 3/6 = 3/6

(d) .... + 5/27 = 12/27

Answer 1

(a) 7/10 - .... = 3/10

..... = 7/10 - 3/10 = (7 - 3)/10 

= 4/10 = 2/5

(b) ... - 3/21 = 5/21

.... = 5/21 + 3/21 = (5 + 3)/21 

= 8/21

(c) .... - 3/6 = 3/6

.... = 3/6 + 3/6 = (3 + 3)/6 

= 6/6 = 1

(d) .... + 5/27 = 12/27

..... = 12/27 - 5/27 

= (12 - 5)/27 = 727