7 and 5/8 = 61/8
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It is 47/8.
1 5/8 = (1x8+5)/8 = 13/8 (as an improper fraction).
31/83 7/8:= [(8 * 3)+7]/8= [24 + 7]/8= 31/8 in improper fraction
9 5/8 - 1 7/8 = 7 3/4 ------------------------------- It is often easier to convert mixed numbers to improper fractions, do the sum and convert any resulting improper fraction back to a mixed number: 9 5/8 - 1 7/8 = (9×8+5)/8 - (1×8+7)/8 = 77/8 - 15/8 = 62/8 = 31/4 = (7×4+3)/4 = 7¾
5 1/8 + 14/8 = 6 7/8 This is a mixed number and improper fraction. The least confusing way is to convert the first to another improper fraction, where 5 1/8 = (41/8) Now the addition is 41/8 + 14/8 = 55/8 = 6 7/8