1/4+4/7+9/28=???, 1/5+3/10+7/20=???

Question

1/4+4/7+9/28=???, 1/5+3/10+7/20=???

Answer 1

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Answer 2

7/28+16/28+9/28=32/28=1 1/7
4/20+6/20+7/20=17/20

Comments

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