a) 99/165
(99/165)÷3= 33/55
(33/55)÷11= 3/5
b) 162/189
(162/189)÷3= 54/63
(54/63)÷3= 18/21
(18/21)÷3= 9/7
c) 114/288
(114/288)÷2= 57/144
(57/144)÷3= 19/48
d) 343/539
(343/539)÷7=49/77
(49/77)÷ 7= 7/11
e) 121/143
(121/143)÷11=11/13
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Verified answer
a) 99/165
(99/165)÷3= 33/55
(33/55)÷11= 3/5
b) 162/189
(162/189)÷3= 54/63
(54/63)÷3= 18/21
(18/21)÷3= 9/7
c) 114/288
(114/288)÷2= 57/144
(57/144)÷3= 19/48
d) 343/539
(343/539)÷7=49/77
(49/77)÷ 7= 7/11
e) 121/143
(121/143)÷11=11/13