Answers

Add 98/90 and 21/16

1^st number: 1 8/90, 2^nd number: 1 5/16

98/90 + 21/16 is 1729/720.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 16 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 90 × 8 = 720,
   98/90 = 98 × 8/90 × 8 = 784/720
3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
   21/16 = 21 × 45/16 × 45 = 945/720
4. Add the two like fractions:
   784/720 + 945/720 = 784 + 945/720 = 1729/720
5. So, 98/90 + 21/16 = 1729/720
   In mixed form: 2289/720

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