Answers

Add 56/98 and 30/90

56/98 + 30/90 is 19/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 98 and 90 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 98 × 45 = 4410,
   56/98 = 56 × 45/98 × 45 = 2520/4410
3. Likewise, for the 2nd fraction, since 90 × 49 = 4410,
   30/90 = 30 × 49/90 × 49 = 1470/4410
4. Add the two like fractions:
   2520/4410 + 1470/4410 = 2520 + 1470/4410 = 3990/4410
5. 3990/4410 simplified gives 19/21
6. So, 56/98 + 30/90 = 19/21

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