add the rational number: 13/4 and 9/7
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take lcm and add
13/4 + 9/7= 91+36/28 = 127/28 your answer
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Step-by-step explanation:
13/4*7/7 and 9/7*4/4
91/28 and 36/28
rational number are 37/28, 38/28
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