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a) 2/3+1/7
(2*7+1*3)/3*7
=14+3/21
=17/21
f) 4/5+2/3
=4*3+5*2/5*3
=12+10/15
=22/15
k) 1 1/3+3 2/3
=(1+3)+1/3+2/3
=4+1 [1/3+2/3=1]
=5
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Answer:
(a)17/21 (b)22/15 (c) 5
Step-by-step explanation:
(a) 2/3 + 1/7 = 14/21 + 3/21
17/21
(b) 4/5 + 2/3 = 12/15 + 10/15
22/15
(c) 1 1/3 + 3 2/3 = 4/3 + 11/3
15/3 = 5
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