Answers

Add 90/45 and 21/98

1^st number: 2 0/45, 2^nd number: 21/98

90/45 + 21/98 is 31/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 98 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 45 × 98 = 4410,
   90/45 = 90 × 98/45 × 98 = 8820/4410
3. Likewise, for the 2nd fraction, since 98 × 45 = 4410,
   21/98 = 21 × 45/98 × 45 = 945/4410
4. Add the two like fractions:
   8820/4410 + 945/4410 = 8820 + 945/4410 = 9765/4410
5. 9765/4410 simplified gives 31/14
6. So, 90/45 + 21/98 = 31/14
   In mixed form: 23/14

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