1) -3.75 + 7/4 * (44/7+17/4*28/17) = -3.75 + 7/4 * 72/7 = 14.25
2) -5/13 * (49/25 * 5/7 + 22/9 * 18/11) = -5/13 * (-7/5 + 4) = -1
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Answers & Comments
1) -3.75 + 7/4 * (44/7+17/4*28/17) = -3.75 + 7/4 * 72/7 = 14.25
2) -5/13 * (49/25 * 5/7 + 22/9 * 18/11) = -5/13 * (-7/5 + 4) = -1