Answers

Add 90/98 and 90/10

1^st number: 90/98, 2^nd number: 9 0/10

90/98 + 90/10 is 486/49.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 10 is 490
   
   Next, find the equivalent fraction of both fractional numbers with denominator 490
2. For the 1st fraction, since 98 × 5 = 490,
   90/98 = 90 × 5/98 × 5 = 450/490
3. Likewise, for the 2nd fraction, since 10 × 49 = 490,
   90/10 = 90 × 49/10 × 49 = 4410/490
4. Add the two like fractions:
   450/490 + 4410/490 = 450 + 4410/490 = 4860/490
5. 4860/490 simplified gives 486/49
6. So, 90/98 + 90/10 = 486/49
   In mixed form: 945/49

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