please help me to find the answer for unlike fractions add or subtract
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please see the pic attached for 1,2,3,4 solutions
and solution number 5 below
5) 2/7+1/4
lcm of 7,4 = 28
2/7*28/1/4*28
........................
28
= 8 + 7/28
=14/28
= 1/2
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