Answers

Add 90/98 and 9/63

90/98 + 9/63 is 52/49.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 63 is 882
   
   Next, find the equivalent fraction of both fractional numbers with denominator 882
2. For the 1st fraction, since 98 × 9 = 882,
   90/98 = 90 × 9/98 × 9 = 810/882
3. Likewise, for the 2nd fraction, since 63 × 14 = 882,
   9/63 = 9 × 14/63 × 14 = 126/882
4. Add the two like fractions:
   810/882 + 126/882 = 810 + 126/882 = 936/882
5. 936/882 simplified gives 52/49
6. So, 90/98 + 9/63 = 52/49
   In mixed form: 13/49

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