Answers

Subtract 21/16 from 98/45

1^st number: 2 8/45, 2^nd number: 1 5/16

98/45 - 21/16 is 623/720.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 16 is 720
   
   Next, find the equivalent fraction of both fractional numbers with denominator 720
2. For the 1st fraction, since 45 × 16 = 720,
   98/45 = 98 × 16/45 × 16 = 1568/720
3. Likewise, for the 2nd fraction, since 16 × 45 = 720,
   21/16 = 21 × 45/16 × 45 = 945/720
4. Subtract the two like fractions:
   1568/720 - 945/720 = 1568 - 945/720 = 623/720

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